I've had all afternoon and evening to add another ten cents. Maybe all stupid ideas, maybe not. But here goes:
1. For the convenience of folks flying in, how about keeping activity venues on or very near the light rail line? It is easy, cheap ($2) and runs practically all night. It would help many who are on a budget and would eliminate the need for a rental car. I realize this would leave St. Paul out of the loop but folks could carpool.
2. Consider setting up lodging near the MOA/Airport. All on the rail line. There are some weekend packages through the MOA that are pretty reasonable.
3. Saturday Afternoon at the MOA is good for all but we should have a (optional of course) Group Activity there. There are lots of choices, but keep the cost low. That's why I suggested mini golf--it is only $25/4 people, plus they offer Group Rates at a 'Substantial Discount.' The Aquarium is cool but very expensive.
4. Saturday Dinner should be at a cool, funky, and reasonably priced place somewhere Downtown. I'm sure there are some places with a variety of good food, neat atmosphere and a menu ALL can partake of...Omnivores, Herbivores, and Carnivores alike. No throwing animal parts at the Vegans.
(I am really opposed to Dinner at the MOA. It is expensive and Cheesy. Yuck.)
We can all do the MTM Hat Toss just before Dinner and I bet SOMEONE in the group can upload the picture before we see menus.
5. Saturday evening should have two options, one Clubbing group (the Drunks) and one Non-Clubbing group (you get to name yourselves). For the out of towners that go out drinking, the last train leaves downtown just after 1AM so there is no drinking and driving.

No need to designate someone! Everyone gets loaded!
6. Sunday good-bye brunch--I'd be willing to bet the farm there's a venue in Bloomington, near the hotels, that offers a reasonably priced Sunday Brunch Buffet. It's Minnesota!
7. Sunday afternoon--I'm sure the group will be getting smaller--many will have to work Monday AM. So the final optional group activity should be low key. Is Valley Fair even open in early May?
Maybe that's more than ten cents, but maybe this is helpful?