Most folks don't live in stick built houses with swirls on them. There are classic colors that seem to stand the test of time. Coaches with polished aluminum / stainless sides still look quite classy today. Airstream trailers still look great.
Personally, except for the fake front window blackouts on some years (cheesy) lazy daze class c rigs seem to hold a muted look that is fairly timeless, although even they appear to be tempting towards the swirl trend.
We have a local vinyl graphics shop. I suppose folks could keep a blank canvas and just change it up every few years.
I know, a class C in an A forum, but hmm....