Dasheighty...I can agree with you. I wonder whom comes up with some of the a/c assingments. But , alas, as a business man also, I know the need of matching supply & demand.Costs also play a very important factor. Airlines are profit making organizations.
I assume you are refering to CO's 738's in your thread. I have not been on CO's, but have been on AA's from LAX to ORD. They sure as hell beat the MD-80 on any segment over 2.5-3 hrs.(and I do Like the MD-80).
Its probably pretty tough to make billion dollar decisions 3-5 yrs out, and get it 100% right.
Several yrs ago, in a WSJ article, a planner from AA admitted that they had underordered widebodies in the late 80's and early 90's. Many customers demand frequency in many markets. I would rather see a little less congestion, using larger aircraft where possible , and cut some of this every half hour stuff on some routes.