Here's my dilemma. You see, I'm the youngest of 3, with 2 older sisters. They enjoyed a few NES and SNES games (Mario games) but I definitely played more than them. And almost never played games with them. Also, I've never really had friends who lived in my neighbourhood. So, growing up and even now I almost always am gaming on my own, therefore online multiplayer is great. I've had many fun times co-oping online on the PS3 with my cousin. However, when I could have a friend or three over, those were the best. I really do prefer co-op when you're side by side with your buddy. It's just more engaging I guess. But, I don't really mind since it was a rare thing to do for me. Plus, there's advantages to online co-op - like not having to share my screen. Still, I'd like to involve my girlfriend in my gaming more just for something else to do, but so many games (particularily the ones she prefers) are only single player. And it's not much fun to watch a newbie game.