Make lemonade out of a lemon. Turn your unhappiness into someone else's happiness by donating your SkyMiles to someone/something who needs them more:

http://www.delta.com/skymiles/use_mi...ties/index.jsp

At the rate you seem to accrue SkyMiles (and with your generous vacation allotment), you should still have enough time to do a little something for yourself, e.g. check out the AF flights from LAX-PPT and from PPT, you can get as exotic as you like. Try camping on the beach.