I like the market tour idea. Why not have monthly markets in several places?
You could have a market in Hydlaa on the first sunday of the month, in Gugrontid on the second, and in Ojaveda on the third. Or something like that.
Some characters would visit them all, and possibly make a profit by bying cheap at one place, and selling dear at another, but what about it? It spreads stuff around, and that's what matters. And you get to meet people...