But how often do we get up to 370 in the RJs?? Not very often. Especially in the northeast, and short hops in the midwest, like we do with our E135s out of CVG. The only way the 50 seat RJs will be efficient is on long, skinny routes to secondary airports, where the load factors don't warrant a 70 seater. Keep in mind too that for the 70 seater, the crew generally gets paid more as well (higher Capt, senior FO pay, and 2 FAs vs 1 on the 50 seater).