If the bean counters retained an entire fleet type to accommodate service into one seasonal airport they should be strung up by their toes. Somehow though many pilots seem to think this is a good idea (thankfully pilots don't run airlines). I heard the same cries from pilots when XJ pulled the Avro out of service and Aspen was left without a viable airplane.
Guess what??? Northwest's entire route network was not built around Aspen during ski season. Likewise, Delta's entire network is not built around Hilton Head during golf season. Putting specialized equipment into the fleet just to accommodate special use airports like these is fiscal suicide.