I sometimes choose the basses I play based on what I'm going to wear and vice-versa. The event often helps me decide this, for example we played several events this past Summer that required a very quick equipment set up and on the fly sound check with no time for any real wardrobe effort so I was wearing hot pants a tank top and sneakers for a couple of the shows out of necessity and ease. I deliberately choose my Jackson 'Bird because the stages were temporary and prone to boominess, it's capable of sounding great under those conditions.
We're playing here: Invalid Link Removed
A beautiful venue on Washington's Olympic Peninsula, we expect 1000-1500 peeps over the course of the evening, it's their biggest event of the year and we love playing there - it's the total rockstar experience with a great stage, lights, dressing rooms, a great sound crew, comped meal and rooms, plus a decent paycheck, it's a dream show for a cover band. We all take a serious approach to it, and plan ahead with some extra rehearsal time, and in this case I will be planning wardrobe with outfit changes between sets. This year I'm dealing with some red clothes for at two sets which means choosing basses that will contrast with it, right now that means the white '89 and the purple '76 as the primaries and since our last two songs are detuned a half step the red 7enderbird will come along too.
The FOH support at the venue is really good so I can travel "light" in terms of my rig, I use a GK 700RBII (it's well beyond loud) and a 4x10 aluminum cone Goldline cab that I originally picked up to use only for practice at home. The rig is basically my stage monitor, I get my "tone" out of it at a reasonable, relatively low volume and let the PA do the rest.
Packing it all up into one of the Subaru's takes a bit of planning, it's a Tetris with gear and suitcases, the trip home being far less fun than going out!