This post is part of the Solar Sail Theory series.

1. The Solar Sail Theory of Indie Publishing
2. Email List Size Really Does Matter
3. Should You Blog? A Solar Sail Theory Answer
4. Being Seen: Why Visibility Matters More Than Virality
5. Direct Sales and Removing Drag

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One of the questions I get asked most often by indie authors is whether selling direct is worth the effort.

The conversation usually starts with royalties. Amazon pays this percentage. Your own store keeps that percentage. If you sell direct, you earn more money per sale.

Which is true. But from a Solar Sail Theory perspective, higher royalties are actually one of the least interesting reasons to sell direct. Direct sales matters because it extends your sail and reduces drag at the same time. 

That’s a rare combination.

Extending the Sail

In previous posts, I’ve talked about building a larger sail. The larger your sail, the more reader photons you can capture. More blog posts, more books, more series, more visibility, more opportunities for discovery.  Reader photons push against your sail, creating drive and forward moment for your business and your indie career. 

Direct sales contributes to this effect in ways that are easy to overlook.

A retailer gives you a product page per book  Your own website can offer:

• All your books are visible in one place, including books Amazon has buried in obscure categories (or shoved into the infamous adult ghetto), books you’ve unpublished elsewhere because of pricing restrictions, short fiction, bonus material, and products retailers simply don’t allow.
• complete series pages
• reading order guides
• bundles (exclusive to selling direct—no retailer lets you bundle books).
• collector editions
• signed books
• subscriptions
• merchandise
• bonus stories
• reader resources

Every one of those becomes another entry point. Every page is another opportunity for a reader to discover you. Every page is another opportunity for search engines, web crawlers, and increasingly AI-powered search systems to find and surface your work.

The more useful content you create on your own site, the more surface area you present to the world. In Solar Sail terms, you’re extending the sail.

The Most Valuable Sale

Authors often focus on the amount earned from a sale. That’s understandable. But the most valuable sale isn’t necessarily the one with the highest royalty. The most valuable sale is often the one that creates a relationship.

When a reader buys from a retailer, the retailer owns most of that relationship. When a reader buys directly from you, the relationship begins with you. You know what they purchased. You can thank them. You can tell them when the next book arrives. You can introduce them to another series. You can continue the conversation.

The sale becomes more than a transaction. It becomes a continuing source of momentum. One reader photon doesn’t simply strike the sail and vanish. It keeps pushing.

That’s why a direct sale is often worth far more than the revenue from the transaction itself. The relationship can continue generating momentum for years.

The Drag We Don’t Talk About

Most discussions of drag focus on checkout friction. That’s part of it. A confusing website, broken links, poor navigation, or a difficult purchasing process can all create drag.  

One quick note: authors often assume retailer checkout is automatically easier than direct checkout. That’s not always true. I’ve seen plenty of author stores with confusing purchasing processes—and plenty of retailer checkouts that are equally frustrating.

If you’re selling direct, make the process as easy as possible. Every unnecessary click creates drag.

Let’s focus on the retail sites for a moment. Drag from the retail sites isn’t just the checkout process.  The bigger drag often happens long before a reader reaches the checkout page.

The biggest drag is invisibility.

For years, retailers served as discovery engines. Readers searched for books. Authors appeared in results. New readers found new writers.

Increasingly, that process has become less reliable. Algorithms change. Categories shift.

Search results behave differently. Books that were visible yesterday may be harder to find tomorrow.

A reader may want your book and still never see it. The energy exists. You simply don’t get to capture it.

That’s drag.

Creating Your Own Momentum

Direct sales doesn’t eliminate drag entirely. Nothing does. But it moves more of the reader journey into an environment you control. If readers are confused, you can improve the experience. If a link breaks, you can fix it. If a series page isn’t clear, you can rewrite it.

If readers want bundles, subscriptions, or collector editions, you can create them.

You are no longer waiting for a platform to decide whether your readers can find you. You are building your own momentum system. Over time, those improvements compound, just like every other part of Solar Sail Theory.

Two Different Strategic Benefits

This is where Solar Sail Theory and anti-enshittification briefly overlap. They are not the same thing. Solar Sail Theory asks:  How do I create more momentum?  Anti-enshittification asks: How do I avoid becoming dependent on systems I don’t control?

Direct sales answers both questions.  From a Solar Sail perspective:

• more products
• more pages
• more discoverability
• more reader relationships
• more repeat sales

All of these extend the sail.

From an anti-enshittification perspective:

• ownership of customer relationships
• ownership of customer data
• ownership of communication channels
• independence from retailer algorithms
• independence from retailer policy changes

All of these reduce platform dependency.

These are different benefits. They happen to arrive through the same mechanism.

More Than Royalties

If you’re thinking only about royalties, you’re missing most of the value of direct sales. Direct sales extends your sail by creating more opportunities for discovery, connection, and momentum. It also happens to be one of the strongest anti-enshittification strategies available to independent authors.

Sometimes the best business decisions solve more than one problem at the same time.

A bigger sail matters. Less drag matters.

Direct sales does both.

That’s why direct sales isn’t just another sales channel. It’s infrastructure.

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