I had a WSM and ended up wrapping it with a water heater blanket but the cooker still needed a lot of lump charcoal to keep food cooking in cold and windy weather. I sold it after I got my egg and life got a lot better. Another option, I'll also add that a drum smoker is a great cooker. Mine is insulated and I can cook in any weather. Wish I had my drum smoke a long time ago...but better late than never. The drum smoker is a traveler, another advantage over my heavy large egg which stays home.
The Renaissance Man.