Is it worth to buy a used phone from ebay?

I’m on about #2 or #3 IPhone from eBay.
No issues, but I always made sure I purchased ones that were in the condition I liked in the photos and also were listed either for the carrier I had in mind or unlocked and then threw in a mvno sim as soon as I’ve got it. eBay is pretty good about processing returns that are legit and I’ve always tried to vet the device the day I received it. Issues with other electronics I’ve filed a notice report immediately and either returned or accepted a partial discount. Looking to sell my old devices on eBay soon. Not going to make a fortune, a few bucks helps, yanno.