For: Alcor's FAQ
Against: Sadly, not much. Paul "ciphergoth" Crowley collects anti-cryonics writing, and it sucks.
You can almost certainly afford it. Eliezer said he paid less than $200/year. I know how expensive a photography hobby is; you're not dirt poor. For a potentially life-saving treatment, that's pretty cheap - people routinely pay more for treatments with worse odds that'll buy them less than ten years.
Well, it's more a question of what my parents are willing to pay for, to be honest. And I don't have any real photography equipment, I just enjoy reading about it, and taking pictures on my point and shoot.