Originally Posted by
aacharya
Because the OP doesn't understand that these offers are never discounted from the upfare to F pricing. (He called them TODs!) He is engaging in pure speculation that i'll get offered $99 to F on my $298 EWR-LAX flight.
Will not happen.
I'm not sure what offers "these" are. There are plenty of data points of cash upgrades being offered on United that are not straight fare differences. The term TOD seems to offend people unnecessarily.
I don't think the OP ever knew of or speculated on any offers for upgrades on any flights other than those posted in the OP.