With so many amps, cabinets, pre-amps out there, how do you choose an amp setup? I find that things sound very different in a store than they do at a show, rehearsal space or in your basement. In fact, I have had amps that sound great in one space and like crap in others. I far as I know, most retailers do not let you audition the equipment in real life playing situations. So, how do you choose?