This is a subjective question; the question is whether $100/hour is worth it TO YOU. There are other circumstances to consider; a few years ago I've had a TATL flight and I had to be in the airport early the next day to fly away again, and I ended up paying for an UG that I otherwise wouldn't have because getting some rest was important to me. If this is flying home on a Saturday and Sunday is available for rest, arriving somewhat rested becomes less important. For a flight over 10 hours, at $100/hour you're taking over $1000. One way to look at it is that $1000 can buy you a weekend in a nice hotel, meals, massages and all... or you can burn that for 10 hours in a metal tube. There are lots of different ways to look at this.