Okay, basically, I had a ton typed up before this, but my computer sucks, and froze, and I lost everything.
So, Reader's Digest version...
We're going to Chicago in the summer of 2007 instead of Orlando in the summer of 2006.
Rather than everyone paying separate prices for airplane tickets, we're going to lump the sums of all of the plane tickets and have everyone pay the same thing. Averaging 7 US airports and one airport in London, the price for each person comes to $297 for plane tickets.
For the hotel, a Hilton in Chicago has group rates. I figure 35 people are coming, and we'll have four people to a room. This means, we will need nine rooms. Each person will pay $213 TOTAL for all four nights.
Activities in Chicago:
According to the Six Flags website, groups of 20 or more will pay $31 per person and will receive one ticket free for each 20 people.
Shedd Aquarium is $17/person.
The Science and Industry museum has days where admission is free; however, otherwise, it's $11/person.
Ed Debevics has party menus, and one of the meals is $12.95/person. The rest of the time we can fend for ourselves? Maybe? I'm trying to find other catering options at other restaurants, but so far I'm not finding anything.
So, it looks like, minus the personal shopping and meals, that the flyaway would cost $550/person.
I would recommend bringing about $85 for food and shopping, so that's like $635/person.
I think that this is semi-reasonable considering everything.
Let me know what you think.