If I remember right the estimation of successful revival via cryonics by LW people who are signed up for cryonics is <0.2. I don't see how that is supposed to produce peace of mind.
It could well be, that their estimation of a successful revival is significantly higher than they are letting on.
I wrote a blog post arguing that people sign up for cryo more for peace of mind than for immortality. This suggests that cryo organizations should market towards the former desire than the latter (you can think of it as marketing to near mode rather than far mode, in Hansonian terms).
http://specterdefied.blogspot.com/2015/06/a-cryo-membership-buys-peace-of-mind.html
For those signed up already, does peace-of-mind resonate as a benefit of your membership?
If you are not a cryonics member, what would make you decide that it is a good idea?