I'm actually a Music123 fan. When I'm at a GC and don't want to be "bugged" I just tell them I'm picking up some picks and just looking. That usually sends 'em away.
Also...I must say, I have a salesguy-Dave at my local GC who's a fantastic guy. He knows his {censored}, he's mellow, not pushy, and hooks me up completely. I met him because I was interested in purchasing something at a "mega" sale price, but couldn't do it until the sale was over. Dave told me not to worry about it, he'd give me sales prices anytime. Since then, he's sold me everything at below online pricing...So finding a good, informed, trustable sales guy is a HUGE advantage.
Last thing...if anyone wants the location and full name of the sales guy, PM me. It's in the DC area...
(and no, it's not me or a friend...)