Personally, I'm glad to see cryonics being given more attention and discussion. It is a subject not well understood, even among biologists. If you think people undergoing it today are wasting their money (arguable, though I don't concede to it being obvious), there is still something of value to be gained by discussing the specific obstacles it faces, particularly in a technically inclined entrepreneurial crowd like HN. Many of us are younger, and will benefit from technological development that is only in the beginning stages at this point.