It's not a job, it's a hobby. One of the kind of things you put money into and don't really expect to get any of it back. But he is 70 years old, has been doing this for 5 years and he is having a blast. It is helping to keep him interested and active and since he would die before playing a game of golf or tennis, it is a good thing.
My dream is to buy a Reindeer Dippin embryo. He's only 60 miles from here.
Well I hope he has a happy and fulfilling time with his hobby.
Personally I'd die of boredom with golf or tennis. I worked a 2nd job at a golf course the past few summers and all I could think was "boy, I'd love to ride my horse out here".