It's going to be tough to answer this despite the experience of the past event because I expect a complete sell-out (1,200) compared to 750 sold (600ish actual attendance) last year.
Last year, everyone moved up and down from the seats to the floor and back again. With the place being packed, I don't see that being possible this year. I do see the hardcore fans for each band leaving their seats and heading to the floor. So perhaps it will still work out after all.
My suggestion to you is get in line early. Folks were lined up about an hour before the doors opened last year. I can see the same thing happening again, if not earlier, this time. You should get in line early and then simply have your wife join you prior to the doors opening at 4:30pm to the general public. Then grab your seats immediately. You can then swap out and go cd shopping, etc.
Please bear in mind that there will be 250 Gold Gadge members allowed in the door an hour before the regular public so don't be shocked when you see all those people go before you despite you having been in line longer.
Glenn H