Do you re-read books you've purchased, or do you buy them for a single read? I've listened to a few thousand audiobooks, over several years, mostly borrowed fr

Do you re-read books you've purchased, or do you buy them for a single read? I've listened to a few thousand audiobooks, over several years, mostly borrowed from the library. I used to purchase CDs of audio books, and sell them when I'm done, but with electronic purchases, there's no way to resell them, and I could never afford the rate I go through them.