Many airlines offer different fare classes. For a return ticket half way around the world, I can pay $1100 for Economy, $2800 for Premium Economy, $3900 for Business Class and $6900 for First Class.

It seems you have to charge a big, big premium to deliver a less crappy experience.

And even then, the experience is only better in some dimensions - your checked luggage receives the same handling no matter what ticket you buy.

Don't forget private charted jets. Those fill the >$7k hole for anyone willing to spend through the nose and they give the best experience of any flight.

The cost is around $1k/10k per flight hour.