Well, although I don't do alot of "flipping" on my bicycles. I do sell some and have parted out some for sale. First, I consider my era 30's thru 50's, I am by no means an expert but I know what I like. I have a few unmolested originals, very few, but I plan for them to stay that way. Original paint is nice only to a certain point of decay, after that, I would rather see them restored. I have a respect for rare original bikes, but they really have no place in my collection, if it that nice and that valuable, I can't see myself riding it, if I can't ride it I don't need it collecting dust. I returned to bikes after a long affair with hot rod cars, I have always laughed about the rare low mileage factory cars that collectors drool over. I think those belong in museums not personal collections. #1 cars are made to be driven, #2 the factory NEVER made a car that couldn't be modified and improved for more speed, better handling, more comfort, what ever your goals may be. My feelings on bikes are basically the same. I think that most concerns about balloon bikes all being parted out leaving none for the people who enjoy them are exaggerated.... it is more likely that the people who enjoy these bikes will disappear as our group continues to age. Admittedly, I mess with "rare" $100 tanks, so my transgressions aren't really removing collection quality bikes from the market. BUT, I have no problem making a tank fit a frame, or a frame fit a tank for that matter! I have 2 Elgin step-thru frames, both with the curved seat tube..... I have no issue cutting these up and making boys bikes from them. Heck, I am excited about cutting them up! See, to me....being a rat rodder isn't about the rust....it is about taking a pile of parts from vintage bikes, cars, motorcycles, household items, etc., etc..and building something cool to ride! I am not in this hobby to time capsule bikes for the next generation..... I am in this hobby because I truly enjoy a bike ride, AND I want to build some SIC Big Ape 1 off rat rod bicycles! I apologize if that causes anyone grief due to the fact I am mismatching desirable parts in order to build my Frankenstein monsters. Right or wrong, parts are worth what ever someone is willing to pay for them....... what the buyer does with those parts is their business.