Beats differs from Rolex because:
-A $1000 Rolex probably is more accurate than my $30 Casio. Diminishing returns tend not to be bashed on Head fi (e.g. STAX), negative returns are different.
-The vast, vast majority of people buy Rolexs as fashion accessories. There are very few people that are duped into thinking they provide head over heels improvements in timekeeping accuracy compared to much cheaper watches.
I really don't mind people buying Beats for fashion. I don't think most of us care about those people. We generally take issue with the fact that people are buying Beats for sound quality.
Also, we are headphone enthusiasts, not watch enthusiasts.