I really don't get this whole "ask permission" thing.
Unless she is co-signing a note for the WSM I say buy it "for us" (no permission needed) and get smoking.
Primo XL, Pit Barrel Cooker, Mini WSM,Lodge Hibachi
Craigslist finds Tiernan SOB, New Braunfels Black Diamond, Big Green Egg Mini
By the way, did she mention my name-just in passing?