My brother had like 6 or 8 a few years ago. I have plenty of room to have them, but to me, the juice isn't worth the squeeze. And I eat a lot of eggs.
Side note, the hillbilly kitty corner behind me had 5 or 6 that he kept in a 6x6 dog kennel. No problem. Then he got a rooster. I was working nights at the time and as soon as I would try to sleep that fucker would start making rooster noises for hours. Tried talking to the guy to no avail. Technically can't even have chickens here. Had to call the city about the rooster and he ended up having to get rid of the entire flock. I don't feel even a little bad to this day.
Love the bear in the yard also. Really cool.