a few thoughts...
in 1968 or so, there was a deal to upgrade from y to f on a transcon flight for $15. i had never been in front & treated myself to it [all fares [sort of] were the same].
the results... i thought that paying $3 / hour for the bigger seat wasn't a value , even though i had free drinks .
the value is in your mind . i try to use mi's to upgrade for long flights. however, i really don't consider that they are worth the 8 cents or so for a business seat. i wouldn't think that there was value between economy & j for the price.
also, there is the question of who's paying? it's one thing if you are paying w/after tax money. it's another if it's business pre tax and its stockholder's money or less tax for the business partnership, in which case, other people are paying tax to make up for your expense.
it's a complex world!
[This message has been edited by clacko (edited 12-31-2002).]