I know somebody who used to be a Flying Colonel. He said that in place of Crown Room memberships he was offered the option of a lifetime of special meals--all fried, in buckets.

To be considered for membership he said that he had to sign a paper saying that he loved changing planes at the Atlanta airport, and that Delta cabins are spotlessly clean (except, of course, for the grease from the aforementioned buckets).

Another perk seems to be that you can get an L Class upgrade if, and only if, you are wearing a white suit and a string tie.