No production, storage, shipping… You think all of that costs $1? Also not every book is $50. A lot are way cheaper than that (around $10). So even $1 would be %10 which is not just a very small fraction (but again it’s more than that). See below for a screenshot of Harry Potter and the philosopher’s stone. Kindle edition is even more expensive than the paper copy ($10 vs $7). Not only that it is more expensive for no reason but it is about 40% more expensive compared to the $7 price of the physical copy (and I don’t think I have to say this but I don’t think that’s a small fraction).

Edit: also I never said I don’t purchase any ebooks. I said I’ll stop using libgen when ebooks are cheaper than physical copies. Whenever I see shit like the screenshot I have attached I just pirate the book. I am not going to spend $10 on an ebook when half of that is going into Bezo’s pocket for no reason.