I had two a few years ago- know a couple of people who keep herds. They aren't good on damp ground, it gives them footrot, which is why they have never done so well certainly in Scotland anyway. I don't know how much they would put you back now, to be honest, you might even struggle to find some. Ours were complete escape artists, we lived a field away from the M90 motorway, and they used to graze on the motorway verges. We got rid of them not long after that.
Beth