Scientology: fraud or enlightenment?

I have developed quite a strong 'anti-Scientology' mindset. This seems to have stemmed from a video i saw, showing quite a few of its scarily bad points. Then again, looking back on it, it sounds very stupid gaining opinions of things from just one source. However, after visiting the official website, i found that their religion was very interesting, refreshing, and fair enough in principle. Yet, it could obviously be a possibility that they are using this as a facade to cover up their main motives. I mean, surely cant every church come up with whatever spin they want to gain members. Also, seeing as members invest in courses, it would also give them a financial gain. There are many beliefs circulating about what they believe and what the principles of the religion are. These include the story (which i have heard myself), about an evil alien prince by the name of xenu, who infested the already inhabitants of the earth called thetans, and killed their original souls with 'h-bombs'. Yet, on wikipedia, the only extra-terrestial related belief is that peoples 'thetans' have lived on other planets other than earth. Ex-members sometimes say that they must invest thousands of dollars into the church before they are given information on 'confidential upper levels' within the church. According to a video, most members are suicidal after leaving the church, and the founder, Ron.Hubbard, describes how he gives the right to 'destroy' the churches critics. Critics have been harassed, and due to the Churches high finances, have been left in severe debt. Every branch of the church includes an 'information centre' to entice people into their belief system.The big question is: 'if they preech words of enlightenment, then why must people pay for their courses? However, form your own opinion from www.scientology.org , http://www.youtube.com/watch?v=PWx7v6L6tvs&feature=related, http://www.youtube.com/watch?v=rCGP-0545EU