spits out rotten teeth

That would be stupid. If I produce, say, $5,000/year for charity, and a dentist adds even a year of productive life to me, then it's worth $5,000 to go see that dentist. At worst I break even.

I don't have a car, but for most people a car probably allows them to get to their job to begin with, so that's $50K+/year in income, vs a $10K used car every few years. Again, you'd have to be really stupid not to think this is a smart investment. A rational person should optimize by getting a high paying job and donating that income to charity, not by skipping the car and working at whatever happens to be otherwise reachable.

Movies? Well, I'm an emotional being. This is the place where we do get in to personalities, but for me, personally, if I'm unhappy, my productivity drops. Going to a movie refreshes my productivity. I do better work, don't get fired, and might even make a raise. So for me, personally, it still works out. It's not like I'm spending $1,000/month on these things.

And, all that aside, just because I'm not a perfect philanthropist doesn't mean I should automatically default to cryonics. Maybe I should self-modify to sign up for cryonics, or maybe I should self-modify to be more like Rain and juliawise. It's important to ask questions and try and determine an actual answer to that. It's easy to push for cryonics when you genuinely ignore the opportunity costs, but for those of us actually stopping to consider them, a response of "shut up, you're no Rain" is really, amazingly unhelpful.

Given that there are 2000 people in the world signed up for cryonics, I think there's a lot more people who have open objections to it, too. If our community's response to "But what about VillageReach?" is really "Oh, like you're so selfless", we are going to lose. Rationalists ought to win.

Even if we ignore the practicalities, even if we ignore my personal situation, it's still a damned useful question if we actually care about the rest of the world. And if you want cryonics to be mainstream like Eliezer seems to hope for, you have to actually care about the mainstream.

So, if all you have is a witty ad hominen attack about how I'm not truly selfless, kindly quit already.