According to the Slate article,

Yudkowsky and Peter Thiel have enthused about cryonics, the perennial favorite of rich dudes who want to live forever.

Uh, no. Surprisingly few "rich dudes" have shown an interest in cryonics. I know quite a few cryonicists and I have helped to organize cryonics-themed conferences, and to the best of my knowledge no one on the Forbes 500 list has signed up.

Moreover ordinary people can afford cryonics arrangements by using life insurance as the funding mechanism.

We can see that rich people have avoided cryonics from the fact that the things rich people really care about tend to become status signals and attract adventuresses in search of rich husbands. In reality cryonics lacks this status and it acts like "female Kryptonite." Just google the phrase "hostile wife phenomenon" to see what I mean. In other words, I tell straight men not to sign up for cryonics for the dating prospects.