I asked a friend to try rfactor and LFS.
In rfactor he was spinning all the time, but he wanted to learn how to drive it...not because of graphics, but because it pretends to be a real car on a real track.
In LFS he started driving and did a few turns witout spinning, going a lot faster than in rFactor....and after three laps he spun and :" I can't drive that it is too difficult!".
Conclusion....if you give them pretended real tracks and cars, people are ready to accept everything. If you give them fictionnal cars and tracks, they will not forgive anything, they will not see how the physics feel better, they will get nervous at the first crash and lose patience. Amazing how few letters like M O N A C O or G T 4 0 can totally change people mind.
For example, I see people are fascinated with the new historic GTL mod for rFactor. I am sorry, handling is horrible...I took a porsche 911 and it was impossible to spin it with full lock and full throttle in 2nd gear....but every time I released the throttle in 5th gear almost in straight line it was spinning. If real Porsche were handling like that and spinning at 150 kph every time you lift your foot 2 centimeters up, there would be no driver alive...such throttle movement happens very often when the car shakes on bumps.
This and FFB spikes you can feel every track polygon with some cars...it ruins everything but people are hypnotized by few letters.
Really a pity LFS did not want to include real tracks.