Every game is just a game... Shooter... Non-shooter... 1st person or 3rd person... action or adventure... If it has RPG aspects to it doesn't make it an RPG but it could still fall under that genre... so why is this even an argument?
You can play fallout 3 in 3rd person... so can you call it a FPS?
Borderlands is a GREAT game... but im not much of a FPS player... I got it for the RPG aspects of the game... the thrill of the next level-up LOL...(I understand that this thread isn't about borderlands but wanted to add it for the sake of argument)
I think more games could fall under the RPG genre if we took the time to look up what role playing game really means...