I think they fit in the current "look at me" instagram/facebook generational societal mores. It goes along with everything else; have shiny silvery chrome metal adorn your $5,000 USD box of blinding lights wasn't gaudy enough so people had to start dipping into shitty car colors to finish the job.
They're horrible but whatever...so is a lot of shit these days.
EDIT: I mean they're near the top of the list don;t get me wrong