There are scores of mormons that tithe hundreds of thousands of dollars over their lifetimes in order to become gods of other planets after they die. In my view they're just as silly as the person who uses psychics. And it's not just mormons -- plenty of catholics, jews, and others do as well.
It's easy to pick on people that use psychics -- but really it's not any more or less silly than a bunch of mainstream spiritual beliefs.