My friends in Crete barbecue goat whenever they have to shoot one because it was about to stray onto the neighbour's land, which cannot be tolerated. It's pretty good, although I daresay these are quite young goats as their curiosity shortens their life expectancy. Also, in parts of France, Switzerland and Spain, it's quite common to eat roast kid rather than lamb. You have to slow-roast it though as it's very lean, but it's very good. I don't know that I'd be that keen on eating an old billy though. That would probably require a fait bit of hanging beforehand, same as mutton.