And don't forget the potential forum meet up with Denny, Drew, AmandaK, and others.
I'm bummed I can't make it this year (I mean it is on the other corner of the country for me). It's a great time to meet and talk with other homebrewers, have face-to-face time with the "celebrities" on an equal basis, form friendships, and of course, try all kinds of beer, mead and cider - homebrew and commercial.
The pre-conference events are usual great too - The BN anniversary party, brewery tours (a lot of time with some special things you don't see on the normal tours), etc.
It's also a chance to get some hands on with the equipment and ingredient suppliers in the homebrewing industry.
Did I mention you may see Denny and/or Drew? That should be enough!