...wait till you find out how much my one friend spends on golf a year!!!!! Hobbies are expensive. This will take about 3 maybe 4 months, and I think i'll enjoy playing it with and so will all my friends and family, so it's worth it I think.

What type of work does he do that allow him to spend on hobbies? (In other words, "What can I do to be wealthy like your friend?".)

Well… many hobbies are not that expensive. But sure, $1k/month for enjoyment is totally reasonable.