On-site Vs In-room...

We've got an on-site auction tomorrow at 120 Syndey Street, New Farm 11.45am (Just a quick plug..). A little street theatre on a Saturday morning then off to lunch. We've being conducting mainly in-room auctions, but i'm back to the footpath tomorrow. There is two different camps on this topic. Do you get a bit more emotion on site or is the professional environment of the conference room a better platform.