...but for the approx. 80-90% of fliers who aren't up front, Y in a TATL 757 is not as comfortable as a twin-aisle aircraft--less room to walk, aisle blocking issues, more cramped feel, etc.

*Of course* a 757 feels old. Except for the LCD video monitors, the inflight TATL experience on a 757 in Y is the same as -- or worse -- today than it was on a 707 in the 60's (same cramped narrow-body cabin but with narrower pitch, worse food, and surlier service)

Setting aside cost/financial reasons, after decades of almost exclusive widebodies across the pond, CO's TATL 757s are an experiential blast from the past.