I think the show's entertaining. I've never seen the Coke machine episode, so I can't say there, but sounds pretty shady to me
I would probably agree with the staged and not fake thing. Most the people probably come in, and the tv show guys say "okay, now, come back in and we'll film it"
as for restorations. I could see a lot of them costing that much. You have to remember, THEY are not doing the work, they are farming it out. And that guy probably charges $75+ per hour PLUS parts. and when he's done, they sell things at retail price, not what we'd want to pay for them.
I saw the goofy hoops, or whatever it was, and I was surprised they offered him $600 for it. But, they I thought, if they are selling it at retail price, they will try to get $1200 for it. They almost always try to at least double their money.