It's not that I don't want to see it work out, or that I don't expect people would enjoy the ride more than flying. It sounds perfectly pleasant and nice. But

It's not that I don't want to see it work out, or that I don't expect people would enjoy the ride more than flying. It sounds perfectly pleasant and nice. But it has a pricetag of $64 billion. How much more exactly are they going to enjoy it, in dollar terms? How much is it worth sticking taxpayers so that wealthy SF<->LA commuters can have a slightly more pleasant experience?