"It's highly unlikely that those who have invested considerable finance, effort, and reputations in the construction of a hard and soft proprietary infrastructure are willingly going to change horses," writes Derek Morrison. It's a bit like switching from fossil fuels. Even if the alternatievs are better, or even cheaper, there's just too much invested in the existing infrastreucture. But for those facing a switch, there are compelling reasons to consider open source alternatives. "The Web 2.0 ethos of being external facing, encouraging user-generated content, collaboration, and sharing aligns more comfortably with the open source world rather than the "walled garden" model underlying proprietary platforms."