Thanks AV8R,
I had heard that the JFK-SFO/LAX routes (primary mission for the 762) were very profitable - lots of paid Biz and full-fare Econ tickets - in part due to wide-body 3-class aircraft.
Of course if the hypothesis is that the biztraveller is either mythical these days, or is buying tickets months in advance with Sat night stays (like your ma-in-law :-), then 757 makes sense - heck a CRJ-XXER will do....
Now that UAL can operate upto 268 RJ (from current limit of 133) -from a cost perspective OK - UAL *may* get a lower CASM from UX RJ ops, but from a revenue perspective - the RJ explosion sounds problematic. So now a pax can choose between Southwest Guppies and the UX CRJ...
Everybody talks about costs at UAL, but I think too many people - espp UAL mgmt - don't worry enough about revenue!