Maryland Smart Car Roundup

I'd like to arrange a Maryland Smart Car Roundup.  However, Maryland is an oddly shaped little state and without fedback from potential attendees, I don't know where to hold it - Frederick?  Baltimore? Annapolis? Easton? St. Mary's City?  

If you're a Maryland Smart Car owner and you'd attend a smart fortwo roundup if it was a reasonable distance from your town, please respond with the name of the major city where you'd like to see the roundup held.  

Thanks!