Also agree with Zeta on Nintendo being the only one bringing something (somehow) new to the table. That's why I got me a WiiU back then, and I'm sure it'll be my last console. Can't wait for all gaming to become platform agnostic.
Also agree with Esteban on how lonely the experience was back in the day. Sure there were the Blades of Steel, RBI, Goal, Tecmo Super Bowl, etc to play with friends and relatives. For the most time, it was a private thing.