That's kinda funny, considering that Sony and Microsoft are both notorious for shelling out repeats, over and over.
Eh, he's just ignorant really. I got the Nintendo Wii for fun, interactive games.. different games. Games like Pikmin, like Wario Wear, and of course all the classic. To say that Nintendo are putting out the same game over and over is ridiculous. Just look at the Gamecube.. how many completely new (& different) games did it have?
Obviously each console has something to offer, and Nintendo's main selling point, is innovative gaming. So, yeah, it's pretty funny that your friend said that.