Vintage 80's BMX bikes = Gold and some of the 1990's one are becoming very collectible. But you really have no know what you are looking at. Dept store will always be kinda worthless but sometimes they have a rare part on them that's valuable. And like anything cracks and dens kill the value. BMX flippers have a dislike for flippers but if it saves a piece of history from the recyclers I'm all for it.