[DrLogik]

Carry items that people actually need and that sell.
Don't just carry fly fishing stuff. Carry other things that are a convenience (hunting supplies, back country hiking supplies, maps, etc)
Be a local "source" for all things fly fishing in Arizona (where to go, how to get there, what works, safety in the dry climate, what trout are in AZ, etc)
Sell access permits.
Think outside the box.