I've been developing for a while and have never had Redmond "ram" anything down my throat. Just because they come up with a new feature or tool doesn't require me by default to use it. I've had company architects and managers do that, but never Redmond. MS has provided a huge amount of developer tools over the last couple years with .NET. Most have been good. Some have not been. Introducing any new product involves risk and some work well enough to have longevity.