You must register in advance, however. The advance registration is required so that I may give the hotel an exact headcount in advance. After all, we want to make sure they have enough food for all of us!
The electronic sign-up and pre-payment process is working well. As of this time, 60 tickets have been sold. Where else can you attend an informal dinner with 60 or more fellow genealogists on Saturday evening? I expect a few more people will sign up also. You can sign up at http://www.eogn.com/rootstech2013.
Details of the dinner are available at http://goo.gl/Xw9mu.