[quote name='eastshore4']Is that non-members event still in effect on sunday?[/QUOTE]
Not sure, but I do know that you pay more as a non-member. I also know that when the cashier was ringing me up at the register, he accidentally rung me up as an "open house" customer, and Tekken 6 showed up as $40.00. So, the "open house" people are being brutally murdered in prices.
EDIT: I just did a search and apparently "Open House" is still good until the 8th of August (Sunday). Tax free in Mass is also on the 14th and 15th of August.