Now I certainly don't expect every game to offer split screen - particularly modern fps's, where stealth and realism are key-points, but when one is playing an old game in particular, it feels lame to be at a gathering of family and friends and realize that everyone has to go home before you can play it together.
Seriously, if you are at home, by yourself, and using a paid service like XBL, do you want to spend your time and membership money on old games, or new ones? The only real draw for titles like Quake Arena (that lack a substantive single-player game) is with one's old-school buds, when everyone is overcome with nostalgia.
It sort of misses the whole point in a retro game: a bit like making a new version of the poor man's classic - the Volkswagen, and then selling it for luxury car prices - oh wait, I think that also is happening
lol Usually when we play we try not to do that (and usually the other person will know if you do). I remember one time in college though this guy raged so bad from screen looking. Sometimes we would screw around and I looked at his screen and owned him, then he said he would keep looking at mine and I said ok. I kept whippin him and he kept getting angrier and angrier till he threw the controller at the wall and stomped off to his room 
I really wish the Castlevania: Harmony of Despair had local split-screen (even if you had to stay relatively close to each other) since it is supposed to be played with multiple players... but apparently all online.
