This suggestion is terrible. The cost of magic in a monetary sense is by far the lesser part of what it takes to get good at it to the point where it effects your life. It costs VAST amounts of time. I bet I've played more magic than 99 percent of people and I'm still not that great at it. Magic is fun and I like it but it's a terrible recommendation for someone looking to spend money to optimize their life.
On ChrisHallquist's post extolling the virtues of money, the top comment is Eliezer pointing out the lack of concrete examples. Can anyone think of any? This is not just hypothetical: if I think your suggestion is good, I will try it (and report back on how it went)
I care about health, improving personal skills (particularly: programming, writing, people skills), gaining respect (particularly at work), and entertainment (these days: primarily books and computer games). If you think I should care about something else, feel free to suggest it.
I am early-twenties programmer living in San Francisco. In the interest of getting advice useful to more than one person, I'll omit further personal details.
Budget: $50/day
If your idea requires significant ongoing time commitment, that is a major negative.