Having said that, I have bought Kelly's Bronze turkeys for £70 and Sainsbury's basics for £9.50. To be fair they are all variable and I've had rubbish organic truffle fed ones (not really) and once an amazing butterball.
I go average now because with good gravy, pigs, stuffing, cranberry, bread sauce, etc, the turkey itself fades into the background.
Have ordered an M&S 4 bird roast, gravy, bread sauce, cranberry, boozy cream, smoked sslmon platter for the big day £131.
Usually buy crackers, napkins, table decs, wrapping paper just after Christmas for less than 20% of retail price.
We host Xmas with visitors arriving from 23rd and continue catering untils 29th. I think I worked out that from 23rd to 27th I'll serve approximately 54 main meals and plenty of breakfasts and snacks. I will spend about £500 on food although we will have stock and leftovers for about 12-16 more meals. DH deals with cellar.