I really want to keep the smoker & grill close to the house. I'm planning on making the deck and siding a lot more fire resistant. I use the grill throughout the winter and know if it gets moved to the other side of the deck it won't get used in the winter for sure. Probably not very much in the summer either.
Early research puts wood deck at $6/sqft installed; composite at $10/sqft installed; aluminum at $12 installed. Total cost of ownership after 4-5 years is almost dead even regardless of material.
I'm thinking of going to stucco for the walls of the back of the house.