My mother raised a couple of standard bred horses for harness racing. My experience with horses was that one end kicks and shits and the other end eats, kicks, and bites. She always said if she ever hit the lottery for a big jackpot she’d just keep raising horses until it was gone.
I don’t know the situation now, but before the Great Recession you could sell a horse, at the beginning of it you could donate a horse, and as it wore on you couldn’t even do that. We considered ourselves lucky to be able to donate the horse for a tax break. A lot of horse were put down because no one could afford them, even when they were free.
Really good documentary about her called All the Queen’s Horses.
IIRC, she was embezzling more than the town was spending on schools AND police! 
Gotta respect that kinda chutzpa!