Well, the Indian military weaponized the Ghost chiles (Bhut Jolokias) as crowd and elephant control pepper grenades.

If you're not looking to control crowds or elephants, you can use them in any application you'd use other hots in... just smaller quantities for similar heat (Ghost peppers can be 3 to 4 times hotter than Habaneros).

I make pepper vodka as a gag/torture device out of a few, the rest I give away fresh or dehydrate and make into powder.

Also, you might want to look up some pictures of the bhut jolokia pepper and compare them to what you are growing. A lot of places are labeling things as ghost pepper that actually aren't, either through misunderstandings or intentional attempts to get in on the nuclear craze thats starting up. Several times I've bought "ghost peppers" and wound up with naga morichs. Still a very hot pepper, but its not the bhut.