I've thought about doing this, and now I see that it can work thanks to these guys:
http://www.cookevillebattlebarn.com/Home_Page.php
They're a couple of hours away so it's not really convenient for players in the Hendersonville/Gallatin/Goodlettsville area to make the trip. My main motivation for this place is to create an environment for young players to grow in the hobby. I want a place that's close, that's clean, and that's competitive. I started the hobby 8 years ago when I was 15, and not having a place close by was rough. I believe these small gaming barns in towns without store support can really help people get into the hobby. I wouldn't be selling product. The barn would be a glorified friend's bonus room to play the game.
This barn is still in the planning stages (though I already have the building), but I'm trying to get a feel for what kind of reaction it will get before I start putting a lot of time into it.
If there's anyone in the middle TN area who wants a game, has input, knows someone who would enjoy this, or wants a game, send me a pm.