We're not going to bring many people to OSS if we make it as expensive as the system they're locked in. One more obstacle.
But isn't that exactly what they are doing? Ubuntu has been around for 8 years now, would many startups last for 8 years without being profitable? And when should they start deploying their business model? When we are happy with it?
I think that many of us are being two-faced about Ubuntu. We want Linux to succeed, but not Ubuntu. We want to prove that you can make money from open source projects, but object to Ubuntu doing so.