Hubbard was a lunatic and a genius. His "self-help" is actually brainwashing. His techniques are/were unbelievable.
The inner circle actually believes that we are decendants of an ailen race placed on Earth as a punishment. At that time we were clusters of energy that eventuually remembered how to be a physical being.
They also believe that any problems you have now are not from this life but from a past one. If you have jaw pain it is because your engram "remembers" being a clam and your current body doesn't know how to handle that feeling. You then must actually remember being a clam to clear the engram from your body.
The method for clearing is a combination some of the most intense brainwashing techniques I've ever seen.
Celebrities don't go the the "real" churches. They go to special churches designed to make scientology look good to the public. The celebs are not only free advertising, they actually pay for the privilage.
Scientology always has, always will be a money making cult.
I speak from experience. My mom bought (and I do mean bought) into it for a lot of years.
WWW.clambake.org exposes a lot of the inner secrets of the organization.
On a side note, there are those that believe Hubbard and Gardner got into a bet over who could create a better religion and get the most followers. The result......Scientology and Wicca.