I think buying iRacing was a great decision for me. It may be very expensive, which is a downside but it is the only sim that offers consistently good online racing. Assetto is still just a hotlapping sim in my eyes, multiplayer is still bad with all the crashing etc. that goes on and AMS just doesn't have the online activity. LFS only occasionally gets a good amount of activity online, which is a bummer, but for such an old game it is not that much of a suprise...