Yeah, but I really wish that there was a good way to just loan e-books the same way I'd loan a printed book. I'd be fine with not having access to the book myself while it's on loan.

Anyway, jesse_the_k's approach is what I'm working toward. I want the print books that I own to be my very favourite books, that I keep so that I can loan them to others or because I want to look at them, e.g. the illustrated Harry Potter books, or because they're out of print. (I don't have access to a good library for print books so the only library books I can get right now are e-books.)