that would be an AWESOME man cave! well, except that screen....it's too small, lol.
but just imagine having the walls painted to look like the stadium, and the floor painted to look like the field. you could even have large screen hung in the corners to mimic the ones in the stadium. then, put a big-ass 120" front projector screen on one wall to show the games. and then build a bar that looks like a concession stand. you could make your man cave have that gameday atmosphere. hell, you could even build faux beams to mimic the concrete structure...just like in the pic.
obviously there's nothing like being there for the real thing. but when you can't make it, you can have the next best thing.