Oh, another thing: make sure you are getting at least 3 inputs that are actually usable for instrument inputs. Most small mixers have a few low-impedance mic jacks and some line inputs. If you don't get one with high-impedance instrument inputs you'll have to get direct-input boxes for your guitars, or banjos, or whatever it is you're playing. Which will cost at least again as much as the mixer.
Off the top of my head I don't remember what the specs are on the PV6... try looking at online discount shops and compare specs.
-Glenn