To provide the voice of dissent;
I found them irritating my eyes, more so than other contacts. But I'm from not-humid climate, results may vary on the coast. Also make sure you see your optometrist on schedule, mine recommended I stop using them after two years for eye health reasons.
And to be fair, I second all of drethelin's comments about convenience.
This is a very important point, and part of the problem is you can't tell whether you'll get used to putting in and wearing contact lenses without trying it. The first time you do it at the doctor's office will be awkward and probably painful.
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.