I would like to agree with you regarding the need for "free" food on board, but the comment you made about airline prices is simply not correct. The prices have gone down considerably over the years, particulary so over the last decade. I think even 3 years ago it would be unthinkable to fly from BWI to LAX for $300, and now tickets are frequently popping up with prices in the $200 range.

I don't know about you, but I would rather pay less for airfare, and then buy a meal on board. Or, as you suggested, simply pick up some stuff from McDs on my way to the plane.