I rent games every so often whenever i get really bored of the games I own at the moment. But the games I rent are usually the new and exciting games which i can then test out b4 thinking of buying them.
It all depends on how long you can rent the game for AND if your actually going to buy it after that time is up. You don't want to rent a game for a couple of days, play it like there's no tomorrow and then have to give it back just as you're nearing the end. Then afterward going out and buying it only to finish it within the week because you played it Soooo much when you rented it the first time.
But it is a cheaper way to test a game rather than buying it outright only to find out that it wasn't what you wanted.
It all depends on how long you can rent the game for AND if your actually going to buy it after that time is up. You don't want to rent a game for a couple of days, play it like there's no tomorrow and then have to give it back just as you're nearing the end. Then afterward going out and buying it only to finish it within the week because you played it Soooo much when you rented it the first time.
But it is a cheaper way to test a game rather than buying it outright only to find out that it wasn't what you wanted.