Hmmmm, the last time I bought a cooked turkey was back in the 90's. I bought one of those "dinner boxes" from the grocery store. It had a small turkey in it, a pumpkin pie, a green bean casserole, mashed potatoes, and some rolls. It cost $25.00.
Being in retail for some years, I would say that whatever the price of the turkey is uncooked, take half of that price and add it to the uncooked turkey price and thats about what you might expect to pay.