What Eggzlot said. I'm an Egg owner who lives in KC... Use my Large all year round. Very low charcoal consumption, very easy to maintain, no babysitting it during a cook, is an excellent grill and smoker... makes excellent Q... But it stays on the deck. If you do go with a ceramic cooker, check out the Kamado Joe as well as the Big Green Egg. The quality is equal or better and you'll get the side tables and stand for the same price as a bare Egg.
If you prefer the Egg, check out the Hot Spot in Liberty... Larry is very knowledgeable and is a KCBS member. Also get a Potlifter http://www.potlifter.com/
It makes moving the 130 lb. flower pot easy.
At the Royal, I saw several teams using Eggs... Dizzy Pig uses 3 (or more) but they're sponsored by BGE. A couple of teams used 2 XL Eggs. They're not THAT fragile but you would have to plan how to lift and secure them during transport. They won't give you an excuse to stay up and drink beer all night... one load of lump and they're good for 20 hrs. They hold temperature extremely well but for a competition, I'd invest in a temp controller like a the Guru... then you can sleep like a baby... or drink without worry.