I don't buy the "nobody cares what the bass sounds like, so what it sounds like doesn't matter" silliness. That is a myth and a fable. Everything you do as a performer matters.
If you operate it right, a better bass will sound better, which will make you feel better about your playing, which will make you play better, which [i]will[/i] be noticed by the people who really matter to a bass player, ie the other band members, the potential band members who are in the audience and any band leaders who are looking to replace their bass player because he sounds crap because he doesn't think that what the bass sound like matters to anyone.
I played Mustang Sally a couple of weeks ago in a band of sh*t-hot pro musicians. Wilson Pickett would have signed up there and then. That's how Nathan East got started, when Barry White saw his band in a club and signed them up as his touring band.
What does surprise me are the players who have no intention of gigging and have a stadium rig set up at home. One example that raised my eyebrows was a 500 watt Thunderfunk and 2 Epifani 410 cabs set up in the front room!
To all the guys who just want to sound good at home, buy an AER combo. They are the best.