IMHO, the quality of visual display is directly related to the mindset of the pilots flying the sim. First full motion sim I ever flew was the 2F110 (E-2C Hawkeye) in the US Navy back in 1981. Night visual only and pretty poor by today's standards. A couple of days after completing training I rode right seat for a new student (read the checklist when asked). 90 minutes into the hop the IP input an engine failure in the landing pattern. I sat as long a possible, but the student "froze" and we were going down. Eventually I took over and recovered at about 50'AGL.
How realistic was it? It was REAL and I was SCARED! Sweat... adrenalin rush... the works! Reality returned when the IP put his hand (through the curtain) on my shoulder and gently said: "...it's just a simulation."
I've flown a lot of sims since and even the old moving camera over model town visuals are realistic _if_ you go in with the attitude that you are going to fly an airplane, not just "the box."
OTOH, if the motion doesn't match the plane or the visuals, it doesn't matter what your mindset is. One quickly knows "its just a simulation."