I am one of a few people that think, that LFS physics are much better than iRacing.
iRacing have only 3 points better than LFS.
1.- Scanned tracks, I don't need real tracks, but the surface tracks in iRacing are much detailed than LFS
2.- Rythm of developement.
3.- Force Feed Back, it is not perfect and it is so much exagerated, but it is better than LFS
IMO this 3 things are only best than LFS, ALL other is LFS better than iRacing, so if iRacing will cost the same than LFS I will continue playing LFS.