For 85 years, owners of aluminum, capsule-shaped Airstreams have been crisscrossing the country in style. This year, the company joined with Pendleton Woolen Mills of Pendleton, Oregon, to create a limited-edition, 28-foot coach ($114,600) tied to the centennial of the U.S. National Parks. And Airstream also recently acquired Bend-based Nest Caravans, which designs molded fiberglass travel trailers.