I don't know if you have purchased a SIM yet, I have both FS1 and G4. I purchased G4 last and I have to tell you that
it doesn't even come close to the FS1. The graphics, sounds, and flying fields most of all are way better. FS1 is not like
playing a video game. I am running 2g's of memory and a 128 graphics card and it does fine. I think that if my graphics
in my laptop was better the picture could be improved. I'm sorry I bouht the G4!, very disapointed.