Kat: I was referring to "people who play games" so yes, you fit very much within the category and you also show my point as you point out that you play games and use Linux, but don't play games on Linux... FSX is a good example. It doesn't work on Linux. I know a number of Linux fans who have said "Oh, I'll get it working!" - none have yet succeeded (although apparently FS9 works nicely... Worth remembering that!)
empeck: You're really not missing out, unless you want to play a multiplayer game that only works with LIVE. Otherwise, the reason it hasn't taken off is because there are larger, more accepted and more importantly better incumbent applications in the market. Hence my comments that MS are trying to force people to use it because it's been launched three times and still hasn't been picked up by more than a small fraction of those using the other equivalent services.
However, going back to the original subject of this thread, I won't write off any flightsim that I can see development taking place of. A lot of people (as this thread also shows) don't trust or like the way that MS have implied they will take forward the franchise. Although I strongly suspect that many who say they won't ever get it eventually will, if there are other products available, they're competing for exactly the same small userbase and MS may well get stung if they go too far.