I absolutely understand the principal there, but the reality is that it took me less than 30 minutes to be fully up and running with aC, using hardware that was already online running our subversion server. A light bit of tinkering for a Sunday evening - I don't anticipate any further ongoing investment in maintaining it. It's just PHP, so it should run and run.<p>That said, this wasn't directly a cost-saving exercise for us. That's just a nice by-product.