Picked up an oddball Schwinn Varsity and am wondering if these juvenile size Varsity's turn up very often? It has 24" wheels. I really haven't paid much attention to lightweights until very recently, so I could be wrong, but I don't remember ever actually seeing one of these things anywhere besides in the brochures. Any clue as to rarity? I realize value will be near-nill, but I got it just because it's "cute".