[JMatt]

Doesn't it really come down to "you get what you pay for?"

A wash and dry isn't the same as a wash, wax, and dry.

And that's not even remotely close to a wash, clay-bar, scratch removal, polish, glaze, sealer, show car wax job.

It can easily take 6 hours (or more) to take a car with scratches, acid rain etching, hard water spots, swirls, etc. and turn it into a show car finish.

At one end of the spectrum, $40 sounds fair. At the other end of the spectrum $300 sounds fair.

Again - you get what you pay for.