Some folks just don't want to deal with maintenance: you know, fork seals, steering head bearings, water/oil pump seals, computer remaps, wheel bearings, rectifiers, etc, etc, etc, and then do it again. Riding something new every few years solves that. It doesn't make them bad. It does make them fellow riders. They also create low mileage good deals for the rest of us.
For what it is worth, you can no longer buy a 2014 Cadillac CTS or STX. GM has issued a "STOP SELL ORDER" to their dealers. It seems the electronics are so complex no one knows how to fix them. And the debate goes on.
When the North Koreans finally get around to setting off an air burst nuke, the only things left running will be BMW Airheads and Model A Fords. I gotta get me an Airhead!