I keep the ones I want and sell the rest to used bookstores or give them to the thrift stores.

I tried selling some on Amazon. That doesn't work at all.

As a buyer, I find buying used books on eBay much better than buying used books on Amazon.

I find the prices + shipping about the same.

Where ebay gets ahead is buying a box of books, rather than individual books.

...do you still have any?

only ones I want to keep