Why the love for the Big Green Egg?

Looks like an overpriced piece of crap to me, and I can’t see what the point of it is. I use something like this:

http://www.homedepot.com/h_d1/N-5yc1vZ1xhc/R-202053639/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

and my BBQ is renowned. Am I missing something or is it a just a gimmick?

I suggest you ask this question in the smoker thread currently in progress.