I spend about $180 every 8 weeks for farrier from April thru November. Kinda pricey but I have the most awesome farrier and me believes a cheap farrier will only cost more in the long run as well as lost hours in the saddle.
My feed is cheap. I shop around for a fairly good hay at a reasonable price. I feel the better the hay the less other supplements and grain you need to dump in them. I have 2 mares. One is a super easy keeper and maintains well easily. The other is 3 and growing and teething and at the moment is getting extra feed. I will assume like every other mare I've owned she too will evolve into a horse that will gain weight by breathing!
My mares are both very healthy. No vet bills for years (knock on wood) except I opt for chiropractics when I feel both the horses and the dogs need it. The past year my canine vet has out priced my horse vet. How sad is that? Office call for canine now equals a farm call for the horse.