The wife booked regular seats to Boston and back. I was at the limit for a two hour flight, knees touching seat in front of me. They were cheap tickets. She's used to being upgraded to comfort seats or first, not happening, flight was full. A321 had movies available which helped. I watched Apollo 11.
When comfort seats first came out, the price was cheap, but that lasted about a year or so. I've been in domestic first class obviously and it's just wider seats, not more leg room, and not really anything else better except more bin room. The BOS trip was pretty cheap as our hosts lent us a car, that Mimi Cooper S (which in no way impressed me). I bought most of the food we ate and wine. Our host liked the wine. I picked up half a case in NH because it was cheaper than in MA, go figure.