Thanks for the feedback.
I agree that the price difference is large.
I am willing to pay it the return leg will be upgraded, which is actually J9 on a 767-300. Anybody on likelihood? I think a likelihood of 75% plus would be ok.
I guess the Unitedlast minute upgrade price might be less than $1k but have never been offered it before. I remember flying dehli to new York on united and asked at the counter and they said the minimum price for an upgrade was something ridiculous, like $5k. It is a 15/16 hour flight though.