problem is, expensive cameras that Tesla doesn't use don't work either.

I think his point was even if you bought insanely expensive cameras for tens of thousands of dollars, they would still be worse than the human eye.

They charge $3000 for the hours of labor to take apart the car, pull the old camera out, put the new camera in, and put the car back together, not for the camera. You can argue that $3000 is excessive, but to compare it to the cost of the camera itself is dishonest.