fair.
The comments about the developer tools and the wonky VM setup still stand.
Also, they say money is fungible, but it rubs me the wrong way to be paying MS for the privilege of testing my site on their browser.
If there are differences between IE and (Chrome|Firefox|Opera), then it will require additional developer time. Just testing for those differences will require additional developer time.
I don't want to demonize IE. Supporting any browser requires testing. IE has been especially reluctant to adopt web developer trends and needs to work hard to regain developers' trust. Supporting it isn't just the cost of a testing environment.