[onewhippedpuppy]

As Denis said, you can find trucks anywhere. Fortunately a lot of the dry places are also prime locations to go truck shopping, people in the SW love their trucks! Picking a city that you've always wanted to visit and targeting that area is a fun approach, good way to justify a vacation. I've personally had really good luck finding bargains in Dallas. Trucks are the vehicle of choice and it's a nice dry climate, plus it's easy and cheap to fly there.