A friend of mine got Lasik and deeply regretted it. So you should do lots of research and be sure to get it from someone competent.
Because my myopia is too high, laser surgery was deemed unsafe. I had permanent implants instead (they call them phakic intraocular lenses). It has much fewer secondary effects. It cost me 5x what the laser surgery would have, but I had recently got a windfall and it was the best of all things I did with that money.
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.