Poison plays Amphitheaters - quite sizable venues. Yeah they don't sell them out + often are along side another 80's rock band but they wouldn't keep doing them if they weren't profitable. I'm not saying Poison is musically relevant but they go for their annual summer tour + the fans show up - i went in '06 + '09 - they were def better in '06 though. They have great energy when performing though - more than Bon Jovi - although Jon seems to be doing better this tour.