I've never gone to a detailer, and I've never gone to a regular car wash. My daily driver is in primer, so no need to wax ever. Just wash it with dish soap. Sometimes if I have stuff to do and I have time to kill in between, I'll go to a coin-op self-service car wash and pressure wash the undercarriage. For the other cars, I wash them at home when needed. I live on a farm, so it's pointless to try to keep a car perfect. There's always a film of dust, so I drive silver or gray cars that don't show dust. I wax cars once a year or so, but I don't make a big deal about it.
Charles