+1 on Dan and in addition..

You'll be the only shop that's "stunt" geared. Could be looked at it as a good thing or a bad thing. How you carry your shop is what that will depend on.

Personally, I wouldn't mind having a local extreme shop for gear, parts, etc.

Another issue is if you plan on having "loungers and hangers"..security. Either from people just being stupid and ego's colliding and with people who are out to scout what bikes to steal.

Oh also, i hope you have the funds to do this, its not cheap.