In this generation we have seen many games giveaway the opportunity of great split-screen gaming in order to maintain a high visual quality. This article at gameplayer debates the merits of such a strategy.
"There's a certain amount of live interactivity that co-op or versus online play will never be able to replicate, and here's where the quandary lies. Should we be satisfied with a sexy as hell looking title devoid of a split-screen or multi-player component? Or do we make do with decent enough graphics so we can booze it up with our mates and battle for title of champion of the household?"