Last weekend I flew an AA MD-90 from LAX to SFO. I know that this type was acquired in the Reno Air merger and I believe still serve their original Reno routes. The interior room seemed vastly superior to AAs' "Super 80s". My question: Why doesn't AA use the MD-90s on other routes besides the West coast? Do these aircraft carry more pax than the MD-80s and have greater range and power?