According to the latest survey done by the American Farm Bureau Federation, the cost of Thanksgiving Dinner has gone down slightly. The cost is now some 5 dollars a serving if you are feeding 10 people to a cost of 49 dollars, 87 cents compared to a cost of 50 dollars and 11 cents last year. This is down 24 cents from 2015. The Federation says there has been a drive to keep costs affordable.