I have used/owned REI, Sierra Designs, and a Sears brand tent. All worked well. For backpacking weight is a major issue. For motorcycle use, I have found that the length of the tent poles is an important issue. Check out Cheap Sports in Ventura, CA, and Sierra Trading Post for the occaisional deep discount on top quality 3 or 4 season mountineering (read light weight and compact) tents.
Joseph

"The only thing new in the world is the history you don't know." Harry S. Truman