Okay, I think I'm finally calm enough to post about this again.
First off, thank you all for all of the hugs and support. And to those of you who have sent PMs to make sure I'm doing okay. All the support means a lot. You guys and gals are awesome!
I totally understand what a lot of you are talking about when you say that "it's the end of a chapter", and that we'll still have a great wedding, etc. And maybe I'm too close to the situation, but I can't see ANY positive here. And we've got a lot of new concerns to boot!
We'll have to miss the last night at the AC because we've already got plans with out of town family and friends (reheasal dinner and welcome party). We won't abandon them. This may not be such a bad thing, though. I'm not sure I want to remember the club as the overcrowded freakfest it's sure to be.
What kind of condition is the club going to be in when we get there for our ceremony? There are already discussions on various online fan sites where people are talking about what items they plan to try and steal as a souvenir on the last night. And not small stuff either. I've already heard or seen 3 people say "the colonel is coming home with me!"

We're afraid it'll be a disaster area.
Among the fans of the AdvClub there are, how shall I say, a rather extreme element. The ones that obsess on it. We're now facing the very real possibility that some of these freaks will try to crash our wedding in order to get into the club for whatever reason they've got (probably scavanging for souvenirs). We didn't realize how many of them even knew about our ceremony until they came up to us on Friday night and asked how the closing would affect it. We're going to have to ask for extra security to keep them out.
And then there are our guests. There are many on the guest list that are our AdvClub friends, AC performers, and AC staff (who will have just lost their jobs there). There is no way they'll walk into the Adventurers Club the day after it's official closure and have our day be "all about Rob & Scott". There's just no way. And if we were to change the venue (if that's even possible) then it STILL wouldn't be about us. It'd be about why we had to change venues.
Scott and I have had some serious discussions about this. We considered cancelling completely and just eloping to California. (which would be a HELL of a lot cheaper). But our out of town guests have already paid for plane tickets and room deposits for their hotel reservations. We can't do that to them. We talked about switching venues if that's possible. We'll have to see. But in the end, the ONLY place we ever pictured this happening was at the AC. We walked into our first meeting with DFTW with that in mind. But now we're stuck with "bittersweet" at best, and a complete disaster at worst. Who the hell wants to look foward to their wedding day being "bittersweet"? Or to look back at it that way?
We're not sure what to do. We've got a conference call scheduled with our event planner on Wednesday. We'll talk to her then and see what happens.
Thank you all again for your warm wishes and all the hugs. I'll continue to post here as we find things out.