[phillryu]

This is more about back in its peak, but E3 used to gather all the gamer's attention to a single keynote, it was like the Super Bowl of gaming. Basically if your game was on stage/shown off well it would be covered by every single gaming press and magazine and almost guaranteed mainstream gaming culture hype.

Today Geoff Keighley's Video Game Awards basically took over that role and similarly is the single biggest stage/audience to announce a new game to. If you had a game that they were interested in revealing + you thought it would sparkle to its audience it's a powerful platform.