OP back here. A lot of good responses. Thanks!
OK, I accepted the gig, so I am doing it. The bass player called me, not the band leader. Lack of pay has nothing to do with the band leader or the band that will be at the gig. No prep involved, reading out of their books, know a lot of the rep already, short drive, and hoping to get on the band's sub list by doing a good job. Just a local restaurant gig, doubt if it is much pay anyway. Found out about pay because the band leader sent an email to everyone about checks. So, really, that does not preclude one of the checks being for me. Gig is this week, so will let all of you know how this plays out. At worse, I meet new musicians, expand my network, play a gig, hand out some cards, do one, and one only freebie, and have a nice meal. At best, I get paid, get on the sub list, and get called again for another gig with that group or another group the other members are in.