CRJ-700s. Watch for economics to catch up with these airliners in the next five years, too. Great airplanes. But in shifting them to dual class configuration, as most carriers are doing, they effectively lose ten salable seats. In typical 6/60 configuration, the six first class seats tend to be used for freebie upgrades, not direct sales. Ergo, the 70 seaters are now 60-seaters in terms of revenue potential. The larger CRJ-900/1000s have the economics to be long-term and important players, however.