Honestly, if you're not going to be using the horses for anything other than grazing, you will be investing way more than you will ever get out. I've owned horses, worked in and around the horse industry for 20+ years, and it is very *very* difficult to end up net positive. They are costly animals to upkeep, even pastured, with sensitive biology that makes it hard to care for them well without years dedicated learning how to do so.
I wonder if something like fiber animals (sheep, cashmere goats, llamas, alpacas) would be more appropriate, if you are looking for a grazer that will still produce something other than meat for you? Though there is plenty to learn about them, too, in my experience the ongoing expenses are less and the learning curve a little more forgiving.
