I guess I'm going against the grain but I think this is the right direction. I do web design and while flash is easy, it is pretty expensive. Siverlight however can be made with Studio Express for free or MonoDevelop in the future. To me this makes it better than Flash by far. Until a reasonable replacement for Flash comes along(gifs, svg, and javascript are not reasonable) I welcome Silverlight.
That being said, in my opinion, both Flash and Silverlight should be used sparingly in websites(videos, ads, and misc. web applications).