Be aware that you are going to get a very one-sided debate. I am very much pro-cryonics, but you're not going to hear much from me or others like me because (1) I'm not motivated to rehash the supporting arguments, and (2) attaching monetary value actually deentivises me from participating (particularly when I am unlikely to receive it).

ETA: Ok, I said that and then I countered myself by being compelled to respond to this point:

In particular, I find questions about personal identity and consciousness of uploads made from preserved brains confusing, but think there are very few people in the world, if any, who are likely to have much chance of getting me un-confused about those issues.

Issues of mind-uploading should not affect your decision. I personally am convinced that the reigning opinion on mind uploading and personal identity is outright wrong - if they destructively upload my mind then they might as well thaw out and cremate me. There would be no continuity of consciousness and I would not benefit.

My own application for cyronics membership is held up in part because I'm still negotiating a contract that forces them to preserve me for revival only, not uploading, but that should be sorted out soon. All you need to do is make your wishes clear and legally binding.