The beta for Star Wars the Old Republic apparently drew 2 million users. I was one in the first run, didn’t get to be in the second run.
The game really is a ton of fun. It’s basically a single player RPG where you can hang out with friends and team up on things. Which works surprisingly well.
My only beef with the game is that all the classes are fun to play. Which makes it very hard to decide what to focus on.