Yes, but to amend my previous statement, at least Leno has, in the past at least, wrenched on his own cars. To my understanding, before he "made it", he was a master technician for Rolls, Bentley and Mercedes.
Thing is, humans tend to become out of touch once their money worries are 100% behind them. You will hear Jay say only positive things about his cars: "Yeah, this car gives me no problems! I drive it all the time!"
Yeah, Jay. You have 170+ cars, and 50+ motorcycles, and you employ a full staff, at your hangar at LAX of all places, to maintain them. They are to keep each car "driver ready" at all times...and you probably only put 50 miles a year on your Deusenberg SJ or one of your 3 Miuras, so...yeah.
Leno does seem like a genuine kind person, though. I honestly think Jay Leno's Garage is a way he can give back, instead of hoarding his collection to himself like the Sultan of Brunei or Seinfeld tend to do.
Back on topic: I heard Zymol is supposed to be incredible wax, but expensive. Anyone use it?