Can't do computer games anymore with the one-time use codes go with them.
Apperantly some libraries do, but you have to look at it from someone who works in the rental industry with Blockbuster...that's me btw.
The biggest thing I see from people is how careless they are with things that aren't theirs, and that's with money involved at Blockbuster. We get discs that after a year of rentals stop working because people don't treat them with the care that they deserve. Xbox games will look horrible, Wii games get trashed, though PS3 games are rarely damaged cause they're strong, people don't give them love.
Imagine a place where with no money involved, they'd be rented out more, had longer by individuals treating them poorly, and people at the library who aren't as familiar with games to make sure they're treated right.
Plus, the way games are turning, you won't be able to do anything online soon with any EA games with them being giant douchebags and using online passes. It's a shame, but rentals, a great way to test games before making the investment, is being passed over by the game industry.
For those out there actually reading this, here's something I tell people who want a game but are scared to make the investment. Preorder the game if you are interested, but rent it launch day to try it out. If it doesn't look worth the investment, either cancel the order, or change it to another game. That way the retailer gets another new game to sell to those who didn't order it, and you don't lose out on a game you shouldn't have to waste your money on a crappy game.