I was at SLC, too, registered on Tuesday, and had no trouble getting in, but then, I got there at 12:35.
If you had just wanted the s/w, you could have gotten there at 4:45 and just gotten in the line. They didn't ask for any sort of ID other than mumbling "Microsoft Partner?" every so often, and the lines for handing in the survey and picking up the certificates were separate. Plus, a bunch of people left 2/3 of the way through when they scared them off with the "YOU MUST BE A MS PARTNER OR THE CERTIFICATE IS A WORTHLESS PIECE OF PAPER" speech, so there were probably quite a few extra certs available.
They did a pretty good job of demonstrating VPC2k4, and I'm impressed that it was able to run stably run SBS and an XP workstation simultaneously on a single-processor machine. (OK, a single-processor machine with 1.5GB of RAM), something that earlier versions couldn't do so well. The presentation of SBS2k3 was so-so. I was really hoping for an upgrade path in this release. The security presentation was a laughable bit of spin-doctoring. And they did a really poor job of presenting InfoPath. The way they demonstrated it, it looked a poor man's underpowered version of Access. It didn't come off as much easier to use, and seemed far less robust. Of course, I knew it was going to suck when the presenter hyped it with "If I left Microsoft for a private practice, I'd base it entirely around InfoPath."
I've wasted time at much worse presentations and gotten nothing but a pen and a mailbox full of spam for my time, so I can't complain, I suppose.