The realization of how much life is relative. For several thousand dollars more you can spend 8 hours in a steel tube sitting/laying on a seat that is 5% as comfortable as your couch at home, scrolling through entertainment system with 1% the content volume of Netflix.

But damn if it's not a whole lot better than sitting in economy and sitting in a chair that is 1/5 as comfortable as a 30 year old Greyhound bus seat and packed tighter than a Shanghai subway, watching that same mediocre selection of entertainment on a 7 inch screen - and for that, you feel like you're in luxury!