Amazon has either fucked up their UI or they have drastically changed the way listing's appear to users for books. there is typically a Buy Box, which is the best Prime offer based on the seller or best New offer, then below that there are used offers. As you can see here, there are 2 buy box offers which are both used. One prime, one not. Sales are at all time lows for a lot of book sellers. Glad I pivoted to ebay. Hopefully this is resolved soon because they haven't made any statements about it and seller support says everything is fine. 
This must always be the risk when using these 3 party platform for selling. Good that you had a alternative 👏
yeah, we will see what happens from here. if this continues, amazon will lose book sellers. therefore, lose a shit ton of money.
That sucks. How is eBay treating you for sales?
Have you thought about your own site? I know a dude that can build a mean e-commerce site that accepts crypto payments... And even fiat services too if needed, haha...
haha ebay has been great. not going to stop selling on amazon, but it's definitely not my focus. the only reason i haven't built my own site already is the customer base. amazon and ebay provide that.
Yeah, I know. Nothing saying you can't do both. Just playing devil's advocate, lol.
eventually i might try my own site, but for now it's just not feasible
Oh I get you, believe me, I just like poking, lol.