Kudos to you for looking into EVERYTHING that comes with a dog
Food- I home cook for Layla and about once a month do up a batch of food... i'd say roughly $40
Toys- I probably spend #20 a month on toys.. but God knows she doesn't need it
Clothes- because it is winter i spend more on clothes a month- probably $20-$30
Babysitting- We probably spend $40 a month on her babysitter
Vet- since homecooking we haven't been to the vet but before homecooking we were there a lot... probably $30 a month
She isn't cheap
but thats because we choose to buy stuff she doens't need (ie toys) but thing like the vet and a quality food will be expensive.. but i found the vet to be VERY expensive the first year of having her and since then it's not so bad... we just go for shots and every 6 months for a blood panel.