My old 1070 is the perfect tractor for a horse operation, not because of power needs (although I cut, rake, bale and pickup hay with it). The main reason is because you or someone less experienced will be able to drive it thru your horse barn's aisleways without knocking down the hangers, water hydrants and sliding doors. Too tall and you're going to get a head ache.
All I ever needed was a post hole digger, hay equipment, 8' tined rake for leveling areas and gravel driveway, an 8' snow plow, a 7' grooming mower used in the fields and pastures and a pto generator for far off welding and backup power. It has to be comfortable to operate by many more people than yourself: family, friends and helpers.
Boarders liked the hay operation because they knew exactly what their animals were eating (propionic acid free). That's a lot of money saved over the years.