Just a theory, mind you, but I suspect it has more to do with demographics and politics than money. As the Boomers head for the exits, their toys and hobbies will likely head there with them. As much as I hate to admit it, our country is changing now at a fairly-rapid pace. I find many of those changes both alarming and distasteful (I am a Boomer after all, albeit towards the tail of that "pig in the python"). Cars, real estate and other big-ticket items are also similarly challenged.

Own stuff because you love it, not because you think it will be a good investment.