I think most horses are excellent value for the money; in fact many of them are outstanding in their field.
Incidentally, this reminds me of a nagging question. The last time I renewed my UK military driving permit I had to complete a vote-for-joe test on the Highway Code, one of the questions was along the lines of "A horse-rider on a dual carriageway approaches a roundabout intending to turn right (3rd exit); in which lane should he approach?" I neither know nor care what the answer is but it generated a further question in my mind; does one need a military driving permit in order to drive an MoD horse?