business of religion

When did religion become a BUSINESS? There's always something religious to buy, sell and/or trade -- not only one's faith (http://project05952381.blogspot.com/2010/08/tough-sale-mean-business.html). Nowadays you can even buy credentials as a pastor to lead worship and to marry in some websites for about $20. This means anyone (including myself) can be "ordained" for about $20, less or FREE! With all this, how can we trust pastors and/or small churches? When did religion become a JOKE? The worst part in all this is that there are no regulations -- legal or religious (aside from withing a given denomination).