But what we dont have, and I think it would add a twist to the economy, is collectors, lets say they hang around in Cantha, and would ask for Elonian or Tyrian collectibles.
Now I dunno if that would work since Tyria and Cantha is pretty much loaded with collectors, but who knows

As an exemple, we could have a collector in the beginning island of Elona that would collect Mantid Pincers (from Shing Jea island) and would give away some basic, low level weapons.
In my opinion that would be a cool twist.