My main concern at this point in time is getting information on the air circulation in the proposed sites. I've noticed the past two years that I've gone to otakon, that the air in the current rave rooms is thick, hot and suffocating. If the proposed sites have improved air circulation, they I am for the move. If not, stay put. The current location seems decent and so/so size wise.
Another good question, allot of people will be attending the rave, that's for sure, and of course jumping up and down. Are the two proposed sites above any floors? If so, will the rooms be able to accommodate the