I agree that comfort is the issue. The airlines squeeze so many seats now into coach that for tall or larger passengers it's very uncomfortable for cross countr

I agree that comfort is the issue. The airlines squeeze so many seats now into coach that for tall or larger passengers it's very uncomfortable for cross country flights. I'm 6'2" the space under the seat in front of me is always taken up by someone's carry on bag. Two hour flights are no problem, the five hours cross-country is ok, but any long haul in coach is pretty miserable.