Or you can keep your horse at a stable that has all the amenities and pay thousands. These are the extremes. Your best bet is to check around. Talk to other horse owners and see where they board, what they like and dislike about the stable, who they use as a farrier and vet, and what they like about each. A lot of people make the mistake of boarding their trail horse as if he were a high performance horse.
Horses doing different work have different needs.
People tend to look at barns and drool, but barns really aren't the horse's preference. Just for your database, here in Southern California, where land is precious, standard board is a 24X24foot pipe corral with shade cover. Pasture board that has enough land to really have grass is almost unheard of in any populated areas. Out in the mountians, of course, things are different. I board on my property.