Well, if you come in at 7pm-ish on Thursday night like I did last year, the wait time will be eactly zero minutes.

That said, you do kind of have to race to get you race stuff, t shirt and shop before the Expo closes at 8pm.....
I stopped by about 12 noon on Friday to check out some of the other booths and it was pretty much pandemonium. I'm definately going to do the Thursday thing again...
Kevin