If you want to make money out of goat farming theres a lot more to this than just a little bit of land and a few goats. Running a profitable goat farm means, that you either sacrifice all of your free time or that you scale up to a level where the goats are your only source of income. It isn't that easy and devinetively not that cheap to start with it. You need a stable for the goats, machines to bring food and water to it. You need the food itself. A trailer to move the goats from a to b, you need someone to sell your goats to and all of this must be as cheap as possible if you want to make a profit out of it.
I think a lot of the people working that much make more money than they actually want to spend. The few that I know do. (They invest most of it.) They still want to have even more, but in the way that an athlete wants to set a new record.
I want to have enough to retire and not have to move to goat country, because I don't actually want to raise goats, I just want to work on my own engineering projects.