There's also the fact that bass players aren't really musicians.
But more seriously, what often surprises me is that you don't get more people using 'cello tuning (CGDA). Bigger spread, and easier for power chords. Doesn't really fit jazz too easily, but otherwise I'd say it was easier for most rock music. Unless a bassist can tell me why not. Obviously, I'll dismiss whatever they say because BASSISTS ARE NOT REAL MUSICIANS.
