What exactly are you looking to do? I think all of the Hobie Foxes went back to the EU used market. West River is your best option if you want a higher tech boat. The classic hobie 16, 17 and 18 are still going strong in the mid Atlantic in Hobie Div 11.
The best place might be to look at what regattas are available. You can bring anything to an open class event and that might be enough sailing for you.
go here for a pdf.
http://www.sailregattas.com/crac/DesktopDefault.aspx?tabid=209Va Beach has a racing program as well...
www.sailcrac.com and look on the left for the links. PRSA near the airport has local Hobie 16 sailing and an Isotope or two.
The Hobie events are north of Baltimore and at Rock Hall on the eastern shore and in Rehboth DE.
I can fill in any details on events. Stop by West River the last weekend of April... they have free beer according to MikeF....Also an A class, N20, 505 and Contender regatta. A week later trek up to Gunpowder, camp and try their free beer... It's a Hobie regatta with an Open class as well.... The F16's are supposed to be out in force at gunpowder.
If you want a Hobie spin boat, the Tiger should be available at a good price and you would be pretty evenly matched with the F16's in the local open class and you could always trek to New England and the Carolinas and Syracuse for F18 events.