Being cheap, I fly coach all the time. I also have short legs so it isn't painful to sit in coach. Uncomfortable, but not painful.
But I have been looking at the price of legroom. It isn't that expensive usually. So if I had sprung for comfort, I would be willing to negotiate. $1500 was the opening bid. I probably would have taken it. But I would have tried for 2K.
I would have expected Mr. Newton to be able to fly first class. They pay him pretty well to play that game.