It depends what your goal is. For company black tie functions, I wear a kilt with an argyll and appropriate accoutrements.

This year, (after doing Groundskeeper Willy last year), the company softball team suggested I go as Rowdy Roddy Piper. I'll be donning a Hot Rod tee, some work boots, and a kilt.

Both situations entail wearing one, but in completely different ways. Many here will argue that wearing one is no different than wearing pants, and that it can apply to a variety of situations depending on both how you accessorize, and how you carry yourself.