Liquid nitrogen is not very expensive.
Still, that money presumably has to fund storage costs in perpetuity. Assuming some of the money goes to up-front freezing costs, say you have $25,000 in 20 year TIPS yielding a fairly risk free inflation indexed 2.5%, you've got $625 a year to cover storage. That barely pays for a small self-storage unit around here. It's almost suspiciously cheap.
My girlfriend/SO's grandfather died last night, running on a treadmill when his heart gave out.
He wasn't signed up for cryonics, of course. She tried to convince him, and I tried myself a little the one time I met her grandparents.
"This didn't have to happen. Fucking religion."
That's what my girlfriend said.
I asked her if I could share that with you, and she said yes.
Just so that we're clear that all the wonderful emotional benefits of self-delusion come with a price, and the price isn't just to you.