This is a good place to plug Gencon–taking a trip to do your hobby seems crazy until you actually do it because your peer group is people who did the same thing.
This type of game always has a limited audience but that doesn’t mean that you can’t keep things going.  Right now the KC club is working on playtesting some mods, doing a few games a month, hashing out new strategies and setups.  If you build it and look for the community, its there.
I talk by email and phone to quite a few of the guys I’ve met here I consider them kindred spirits and friends.  One thing I brought up is War Room, but many of the guys consider it a different kind of game, another “all dayer” that may not really compete with AxA because its so different.