H-D markets themselves as a "lifestyle brand". You don't just buy a motorcycle and you're done. You are aggressively marketed toward for a bunch of different pieces of clothing, spare parts, co-branded partnerships with automobile companies, et cetera, ad nauseum. You are effectively buying into a subculture.
Furthermore, Harley-Davidson has been known to use almost identical sales tactics. IIRC and I can't find it now, but sometime last year a sales guidelines book was leaked that actually did things like put attractive models at gas stations to tell the prospective buyer "nice bike" or the like on their test rides.
This is independent of whether or not you can resell them. Whether or not you're permitted to resell the items won't matter any more if they all vanish due to a company going out of business or leaving the game behind.