I like Guitar Center...well, the one here in Memphis at least. It opened up six months ago and I've been there at least once a week ever since. The selection is not great. Fender, Squier, Warwick, Ibanez, Spector, Schecter, MusicMan, and Yamaha. They have a decent used bass selection. Their amp choices suck as best. Ampeg (what else!?), SWR, GK, and Crate. I discovered my love of GK there. I played through a 1001RB into an RBH stack, and fell in love. I've played every bass I get through a GK amp each time I'm there.
I've gotten some sweet deals there. $449 for a used G&L L2000E and $459 for a GK 410RBH and I plan on getting a deal on a GK 2001RB there. The assistant manager, Billy, is an awesome guy. He is super cool to me each time, lets me know what new stuff they get in, gives me great deals, etc. Just an all around great guy. The other two workers that I see around the bass room are not too great. Brian is a prick. He gives you that fake, warm "Make yourself at home greeting." but when I try to set the amp to my personal EQ settings, he criticizes me for using too much treble and sets them to his own, or he tells me to turn the amp down. Buddy is a nice guy, but not the brightest tool in the shed. I took in my MIM Jazz to see about a trade towards that L2000. He didn't know if it was a Jazz or P-bass. They only wanted to give me $150, so like all attmped trade ins, I said hell no.
So in conclusion. Its a great place to go if you know what you're looking for and want to get a great deal, but don't go there for advice or information.
~Patrick
ps- I hate the Blink 182 kids, too. KILL ALL TEENIE BOPPERS!