You've read the books. The shelf is full. If books changed your behavior, it would have happened somewhere around book four.
What a book does
A good business book is three hundred pages defending one idea. You consume it in a weekend, highlight the sharp lines, quote it twice at lunch, and by the next quarter you cannot name the framework without checking the cover.
Your thinking was touched. Your calendar wasn't.
The dose is the difference
366 Flow is one idea per morning for a year. Not because the ideas need 366 days. Because you do.
Reading about a belief once doesn't dislodge it. You nod at the insight, agree completely, and keep the belief. Getting called out about it at six in the morning, again, from another angle, on a day you didn't choose, is a different kind of contact. Repetition with teeth.
A book informs you. This confronts you. No bestseller knows you've spent four months "researching" instead of asking anyone for money. The email that lands on that exact morning doesn't know it either, but it will feel like it does, and the feeling is what moves you.
The honest comparison
A $30 book is the better deal if you're the person who changes from reading. Some people are. Their businesses exist. If that's you, close this tab and go build; you were never the customer.
Everyone else already knows which side of that line they're on. The bookshelf is the receipt.
One more thing books win at: dinner parties. Nobody quotes their inbox. You'll have to settle for the business.