merlijn,
For folks who volunteer to help out at a booth there is no entrance fee to the show. We do not cover the cost of rooms at the hotel, we do have a group rate which is $115 per night and the rooms can sleep 4 adults. There are also many other hotels within walking distance of the Westin, including I believe a Motel 6.
If the group is interested in a booth at the show, I'll need to know fairly soon as space is filling up quickly.
Thanks!
Gareth