I just noticed that Steam very recently put out MS Flight Sim X, which I had wanted to pick up after getting a joystick to try out some flying sim type game(s). It's pretty much impossible to get online now aside from buying an old copy of it from ebay or whatever, and supposedly some of the bugs are fixed.

Also, it's on sale right now for $4.99 for another 2 days or a little under. If you were looking to get it, I'd say now's the time vs $25.