I believe for a 3 serious sedan using their top end film cld even get below 500 bucks.....
but to cover big size man like u maybe charge more.....
For top end it does indeed look cheap. However you can't really tell the quality until maybe 2 -3 years later. My previous ride started to bubbled around that time......lots of tiny bubbles all over the place...I was using Thermal Shield or something like that.