What makes an instrument "gig-worthy?"
One school of thought is that you can buy a cheap instrument, trick it out with some better pups and there ya go! Gig-worthy, right? ****buuuuuzzzzz!!!***** Not necessarily.
My previous guitar player lived by this concept - bragged constantly about how he buys cheapo Teles and slaps some good pups in, save a fortune and has a guitar as good as anyone else's on the road. He will be telling you this and completely oblivious of the fact that his "perfectly fine" instrument cannot stay in tune for the entire length of a single song and he literally spends 30-45 sec's between songs tuning. We finish a set filled with about 25 to 30 percent dead air for tuning and he will go right on about how great his cheap, modded Teles are...
So, for me... gig-worthy means it sounds good, stays in tune and is comfortable to play. If that means spending a buck or two to get a reasonable instrument, it is worth it.
As far as taking a beating - well, I suppose that could be a plus, but I pay close attention to my instrument and don't beat it around. Accidents do happen, so if I owned a boutique bass, I certainly would not be using it for the typical bar-gig circuit.