I would like to go, even if only for Friday and Saturday. However vacation time is at a premium and I have already spent a ton on my new hobby this year. (And I have plans to spend more getting ready for next year, like building 2 long hives and an observation hive.) By the time I sign up my wife and myself, feed us and our 2 kids, spend a night in a motel, and buy gas to get there and back I would be dropping more than $200.
With the books and online resources I have access to, especially this forum, as well as a co-worker friend who is a former beek, I am not sure it would be worth it for me, at least not this year. Sounds fun though.
Interestingly, I see where one of the sessions last year was on 'Natural Cell size', presented by some guy named 'Mike Bush'. Hmm. http://www.heartlandbees.com/has%202005%20program.htm