This one may seem out of left field, but I can't find an answer....
Why aren't painted fretboards more common?
Here's my reasoning:
1. I have generally felt that the fretboard doesn't lend as much to the sonic quality as most other factors on a bass. Wood choice here is usually my last priority.
2. If a company like Rickenbacker glosses the fretboard for decades, it must not be a terrible thing to try. Seems to wear really well also!
3. Some inlay's get pretty intense; wouldn't this effect the sound also?
4. We hide plenty of beautiful wood beneath paint and clear (including the neck), so why not the fretboard?
Maybe this is an inherently silly question, but I don't know why! Much of my reasoning comes from Rickenbacker's long-standing tradition, but a rad paint job might rival some pretty inlay work for the inclined.