Why there are so many Harley's for sale....1 they sell arguably half the bikes sold in the country....so half the used one's might well be HD's. 2 Harley gives out credit like candy so people buy bikes they cannot afford....but know they can sell as soon as they get laid off. 3 There's a contingent of Harley owners who want to switch up every year...and so sell what they have. They might only want a different color...but they will change up often.