Hold different ballgame with some of the "premium" stereos that can come in luxo cars where you can get factory systems by B&W, Dynaudio (like my old XC70), Burmester, B&O, Krell, Revel, etc.
Mine was apparently like a $2000 option, but the Burmesters and others I listed can be like $5000 or more, so they better be good. Haha. Thank goodness for the used car market! I think my car's total value now is probably worth about as much as that stereo upgrade cost the original owner alone. Lol.