What C programs are you thinking of? Thinking of significant C programs that I have used (bash, apache, gcc, and many more), I can only think of a few that wouldn't be easier to write and maintain were they written in Go, without suffering a meaningful performance penalty. Funnily enough, a lot of the uptake of Go has been from former users of Python, Ruby, and other dynamic languages; they attracted to Go's simplicity, safety, and speed.
But really there's a lot more to Go the faulty dichotomy of "dynamic vs static" (or Python vs C, whatever). This is worh reading: http://talks.golang.org/2012/splash.article
>lots of people even like using dynamic languages with an IDE
Agreed, and I have nothing against IDEs. I have just found that I can't comfortably write Java code by hand. There's way too much boilerplate. In my experience an IDE is essential writing Java code efficiently, and I don't think that's a good thing.
>not very convincing or exciting
Depends on your definition of exciting. Since I've been writing Go code I've been more excited about programming than ever before.