yeah not sure how the XL is a fuel hog. I've ran mine at 250 degrees +/- for over 24 hours straight without adding any more lump.
There is a lump reducing ring you can buy which will help you "pile" a smaller load of lump in the center of the egg for smaller/quicker cooks, or as others pointed out, just move all the lump to one side of the egg.
I am happy I got the XL egg, you can make it smaller if you want, and you have the larger capacity when needed.
If you like ribs, and like laying them flat pick up the adjustable rig from the ceramic grill shop. I can get 6 spares or 9 baby backs on my XL with that tool. Its a rib cooking machine!