Lots of people just say "if you want to believe in life after death, why not just go to church? It's cheaper".

I could see people saying that if they don't believe that cryonics has any chance at all of working. It might be hard to tell. If I told people "there's a good chance that cryonics will enable me to live for hundreds of years", I'm sure many would respond by nodding, the same way they'd nod if I told them that "there's a good chance that I'll go to Valhalla after I die". Sometimes respect looks like credulity, you know? Do you think that's what's happening here?