BigV, better remember that the goats won't fetch a stick for you, they will eat your slippers or newspaper instead of fetching that, ride in the car with you at your own risk, and it's unlikely they will curl up in front of the fire with you. But they WILL shake hands, at least
It's not an exact trade-off for a dog. You will be getting a different set of charactistics, and most people would classify having a goat follow you around as more of a pest than a pet. Griff has the idea, They have their space and his family has theirs but they can interreact.