Whatever you wanna argue, developers just see no reason in including split screen anymore.
Split-Screen pros:
- Allows several people to play off the same console, game and tv.
Cons:
- Additional coding.
- Everyone can see everyone else's game so strategy and the surprise element pretty much go fuck themselves.
- Unnecessary eye strain.
- More confusing than other methods since all games are happening in the same place at once, your brain can't help but to loose focus to whatever else is going on.
- Your field of vision in-game is basically shit.
- If you don't happen to have a big tv, in games where a lot of stuff is going on, it can get downright impossible to keep track of what's happening.
- All consoles except the Wii have good online now, you don't need to drag people to each other's houses. And if you do want to go over for a party...
- ...You can just hook the consoles/PCs in a lan, it's not that complicated.
- Means several people only have to buy 1 game... which isn't all that good for developers.
- The internet still exists.
See what I'm getting at it here...? Split-screen was necessary a while ago cause it was the most reliable multiplayer method in a console. Now it's just old and unnecessary in most cases.