Should be no reason to keep the vendor hall open at all into the late evening, let alone over night. The vendors need time off from manning the booths and to be able to rest easy knowing the vendor area is locked up for the night. Of course the games need the rest as well.
The expo flipout tourney needs to move from its present location due to the glare and the pinch it creates in the hotel aisle way. Could locate it in the vendor hall or in its own room like the Pinbrawl events were in the years they were run.