Nope. I play games with my friends all the time. For example: Civ IV and now V, GoW, Halo, and especially fighting games (Brawl DBZ games, etc.). When your friend is being a dick and keeps spamming the same attack or keeps sniping you, it's much more satisfying to actually be able to throw a couch cushion at them instead of just yelling at them over the mic, and in co-op it's better to be able to just point to a spot on the screen instead of trying to explain things. In other words, split screen is a big selling point for me.