I was going to create a new thread about this, but figured it would get merged into this one.
i misread the bonus, myself. i read the club level as being $50 to upgrade to that level instead of it being a $50 upgrade. the reason was because it did show up as being $149 or $159 on initial booking, but when i went to change the reservation (awesome, btw), i could change to the club lounge for no additional charge and actually have it show on my reservation.
When you think of ATL on this thread, you think of DL, as well. So, we have to assume the worst
i actually commented on that thread of yours. didn't remember that at all