To go official or not?

I am running the XPages class in November at the IBM Innovation Centre in Hurlsey. They have a website and regularly have events posted on there. I now have the choice as to whether I allow the XPages workshop to go up there and have them handle all the registration stuff for me, or do I maintain it myself.I'm torn. I can either go the big corporate route and see how many people respond or I can take a more viral approach to this and see what comes of it. The technologist in me is interested in how many folks will register via the blog, and the business part of me wants to make sure we have enough people to make it worth while running the event.

What to do........ (comments welcome) ;o)