Mike, I love the addition of so many arcade games.

However, I feel that we've now lost the sense of friendly competition. It seems everyone is off playing a different game that no one else has yet played (me included).
How about a "Game of the Week" or "Game of the Fortnight"--one game that would appear above the game tabs of the arcade section for that specified amount of time. That way, everyone sees the same selected game--hopefully pulling them in and encouraging a bit more interaction in a single game.
Just my 2 cents.