Not that you'd do it on a WSM, but grilling country style ribs will give you a pretty damn yummy product. Rub them down like you would any rib, and grill them over medium heat. You don't want to sear them like a steak, but you don't need to cook them for 3 or 4 hours either.
Sauce or glaze them towards the end of your cook time, and I think you'll no longer regret having bought them.
Good luck,
Rick