I enjoy doing it, it's fun for me and silly and I have, like any business relationship, relationships with my clients I have built over the years. I am a part of their lives, so even when I don't need the money I feel bad if I let them down. I have no clue how long it will continue, but it has saved me more than once when I've had issues with my tech employment. It also allows me the safety net of being able to quit bad jobs and not having to stress, use savings, or take the first opportunity that comes to me.

The types of people willing to pay this kind of money generally are looking for someone very specific and are very loyal once they have/you have found them. I've only ever had two clients stop in the past 10 years of doing it or so and I turn down new clients all the time.