Regionalized Boat Sales

I live in Cleveland, but ride in western New York. From what I've seen, there are boats made by the big three (BU,CC,MC), some Supras, and very few Tiges and Moombas, in the Cleveland and western New York area. Why have I never seen or even heard of MB, Sessions, Sanger, Calabria, Centurion, Gekko, or Svfara before joining this site? What if I was in the market for one of these boats, and how would I get my hands on one? Finally, why are Gekko, Svfara, and Moomba seldomly mentioned on this site?