Where does everyone get their books from? From what I could tell, all books you can buy commercially come with proprietary (Amazon) or Adobe (everyone else) DRM, making them impossible to read on koreader. It seems like you always have to buy into someone's ecosystem, or am I missins something?
I personally use Amazon. But I rarely download directly to my Kindle. I download to my PC. Use Calibre with the DeDRM plugin. Then put it on my Kindle. Or read it on my iPad. That way I’m not locked into any one ecosystem. I get to own the books for as long as I can keep the data.
I’ve heard DeDRM also works well with Adobe’s protected epubs. But I don’t have direct experience.
If Amazon ever makes it impossible to strip the DRM, then I’ll probably switch to buying physical books and getting files from LibGen. Or just using the library more.
If it's a book that's only available DRM, I buy it on the Kindle. I'm not fond of buying DRMed books, but most are only available that way, and Amazon is the most likely to still be around in the future.
For non-DRM:
Tor Books are no longer DRMed.
Baen Books -- https://www.baen.com/ -- don't have DRM, and you can buy directly from the publisher, and manage your library on their site, and download as many times as you like. You can also often purchase eArc versions, and they have a monthly subscription bundle were you can read parts of the book as it comes out, and then you get the complete book when it's done.
If you're interested in translated Japanese light novels, there's J Novel Club -- https://j-novel.club/ -- for a monthly subscription, you can read book parts for free as they're being translated. Once they're fully translated, you can then purchase the final epub directly from their site.
Books are interesting in that they both are and aren't fungible. If, say, I want to read the next Martha Wells Murderbot book, or the next Julie McGalliard Rougarou book, I have to buy that particular book.
But if I'm just looking for another book to read, I always check Tor, Baen, and J Novel Club first.
