The wealthy boomers are selling those cruisers and taking a loss.
I sold my Road Glide Special last summer for more than I paid for it new 2 years prior. I bought it 2 years prior because I sold the Road King for more than I paid for it new 3 years before that.
All to the dealer, not private sale. Bought 2 Harleys over 5 years - large cruisers and made money on both of them.