Here's an interesting tidbit for you to nibble over the weekend: Belgium is about to ban all game rentals, on the grounds that it has always been illegal, but is only just now to be enforced. They're not the only country to say no to rentals, either.
NeoGAFfers discussing the shift have compared the practice of game rentals to piracy. What do you think of that statement? If you agree, you may even consider it worse, because with rentals, someone else who is not the develper and publisher is reaping all of the monetary benefits of the game being rented again and again.
Of course, many of us do rent games, and probably don't feel that way about the practice ... but should we?