Frequent flyers fly business class. It would be insane to fly a full work flight schedule in long-haul economy. The occasional SFO-NYC in economy where my upgr

Frequent flyers fly business class. It would be insane to fly a full work flight schedule in long-haul economy. The occasional SFO-NYC in economy where my upgrade doesn't clear is torture. I can't fathom doing my usual 10h weekly flight in economy seats. I fly 150k miles a year, on about 80 flights or so. Pretty much all in business or first. Paid by myself. It's really not as expensive as people think… I spend maybe $15,000 annually on flights. Optimizing judiciously is key.