AA Platinum: $95 credit after spending $95 in next two cycles plus 1000 bonus miles after spending $1000/cycle, good for next 12 cycles.
I had fully intended to close the account when I called in, because I just opened a new AA plat. I was first offered just the $95 credit, declined, and then was offered the 1000 miles bonus, and I broke down and accepted it. I've had the card two years, got a retention bonus last year as well (just the $95 credit), and had only sporadic organic spending of under $2K total this past year.