Preventing CMS Code Theft

[eluser]bretticus[/eluser]
I hate to cast a negative light, but I would never buy CMS software that I couldn't modify or know what was going on internally. I have purchased components for Microsoft IIS in the past only because I had no other choice. But with drupal, wordpress, joomla being open source (and free) and even ExpressionEngine providing the source unencrypted when you purchase it, unless you have a substantially better CMS (or niche,) I'd choose the source code versions in a heartbeat. This is just my opinion, but I think at some point you have to trust your customer base that they will be honest (of course all of them will not be.)