I have a few Delta Skymiles. Can they be changed to anything else? I know they won't convert to any other airlines FF program. I've been trying to find a way to use them to get to Paris next spring, but the non-availability of award seats has me stymied. I've even looked into buying an economy class ticket and using the miles to upgrade, but the cheapest ticket for which that can be done is over $2000, and I have no intention of paying that much when a Y ticket from the midwest to Paris is running about $800-900.

I'm beginning to think that my Skymiles and a dollar will get me a cup of coffee. If they won't get me to Paris (which seems likely), is there anything else I can do with them? Rent a car? Stay in a classy hotel? Get free ballroom dance lessons?