Sorry, I forgot something! Vet bills depend on the horse and thier health. Be prepared to pay quite a bit ( around $150+ it depends on where you life) for shots every spring, and there may be a handling fee depending on the horses manners. The farrier will be probably $75 for new shoes, then about $25 four times or so for reset and trim, but everybody is different!
And, some horses may require supplements as well, for joints, coat if you're showing or even things like respritaory problems, these can run from $20 a year to $500 a year. And don't forget worming them! This is about $20 6 times a year.
Ok, i'm really done for now