Come to the conclusion that I'm best off with what I have. Just have to adjust my cooking methods. To do a pork butt for several hours, I'll simply put it on the smoker for 6 or so hours and then transfer it to the gas grill for the final cooking. Equipment I have. Flavor I like and I don't have to fork out a couple grand for a cooker I'll use a dozen time a year. Not to mention the storage issue. Our home isn't that big and not is the patio area.
Thanks for all the advice, info and leads.