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Haha upvoted because I haven't heard this opinion from a single other person. Enjoy your trip!
The prospect of a long haul flight in business with a decent carrier is very different to going cattle class. Business, I'm with you. Otherwise, no chance >

Short legs? >

I mean yeah, a 777/787 in international business class is delightful.
Try a Spirit Airlines A320 red eye from Vegas to the east coast with 28 inches of seat pitch and the typical trash who flies on Spirit for $49 flight. You won't be so impressed.