[GoCrzy]

Dude. Snowboarding games can last because not much changes as far as participants etc. With football, every year is new rosters and stuff. With football games (and other sports games) there are new teams, different players, different managers and coaches, etc that change constantly. And to keep up with all those changes, they also make updates to the game's graphics, its AI, its UI, etc. Every year there is something new in each Madden game.