when i go to sell a used car lot HLR and they are hesitaint to get it done or tried i pop out the " Ill do it if you dont like it , its free" card on them. once you do one its speaks for it self(at least when done right). In 6 years i have never not gotten paid for doing a light ;]
back then they would all look at you like you were crazy because they didnt know we could restore those lights. I still have all those clients today even with new people trying to undercutt my price to get the work. Quality speaks for itself once you get a chance to show it off.