So ghost has been around for a while, its a filesystem aware dump and restore utility. Its very useful and can do differential dumps. It no doubt needs relatively small amounts of development/support.
One might guess this would be like 'free' money for a company like Semantic. And yet they can't recover the cost of an automated email support system and a fractional engineer.
What does that say about their overhead as a software company? Google is (in)famous for 'support by peer group' types of things. Might work here.
So this is a way in which open source can 'win' in the Windows world as well I think as a way of lowering costs and getting the fractional engineer out of the volunteers that maintain it and the perhaps run the faq. I find those to be interesting business questions.