I have a strange and bit complicated compensation story. Long story short, I was given a $50 dollar voucher and a handful of "have one on us" coupons for a 1 hour 30 minute delay. For the full story:

There was an 1+ hour change of flight time in a reservation allowing me to make some flight changes. I changed from a very early morning non-stop departure to the red-eye with a connection. When I got to my connection city, they apologized profusely for my >12 hour delay and gave me the $50 voucher plus a bunch of drink coupons since it was unlikely I would get the upgrade (was already upgraded on the original flight). Initially I declined as I said it was not the fault of Delta, that I made the change. They told me that they appreciated my business as a Platinum and I deserved it. Very nice folks. This was at the counter in SFO. I gave the a bunch of "job well done" certificates in return.