I feed raw. He has things such as chicken wings and thighs, lamb and pork ribs, ox tail, various minces, white fish, sardines, kidney and liver, eggs and yoghurt. I do throw in veg and rice/pasta leftovers too.
It costs around 50 -80p a day (7kg dog) depending on what he has. I am slightly overfeeding to fatten him up a little and I don't have a chest freezer. It would be a hell of a lot cheaper if I could bulk buy from barf suppliers.
He hated dry and missed so many meals he was skinny. We have done raw for a month and he gets so excited at meal times and scoffs the lot.
We feed OrbisDog Orijen. It's expensive but he's quite little so a 13kg bag lasts for months, therefore on a per-feed basis it's quite reasonable. He also gets fish4dogs tiddler treats which I buy in bulk so again quite cheap.
We've tried other complete foods but they all seem to make him farty (delicate little thing that he is), and raw isn't an option as he has a beard which I refuse to wash twice a day!
I feed my 3 raw diet and price wisest workout around £14 per. Week for all three, roughly about 82kgof dog! For me the health benefits mean sit costs a lot less. I would never feed a commercial dried dog food again.