I have this bag
REI Wheelybag Rolling Duffel from REI.com
It has held up well so far. We had it for the last airline trip, it looked better than the rest of our checked bags by the time we got home. I have been using it an all my local trips as well and it has given me no concerns about it's durability yet. That said, I doubt I would expect it to last more than a couple of seasons for that price.
Almost forgot, it weighs just under 9 lbs. That was one of the factors that helped me decide to try it.