I've used my fair share of macros to transform text. Vim's great for that. But that's less than 1% of my work as a developer. Much more often, I'm wanting an IDE to do things like:

* Run/debug code

* Jump to a declaration of a function/variables, or find it's uses

* Extract some code as a function

* Rename a variable (and all uses of it)

I bet vim probably _could_ do all of that with the right plugins - but dedicated IDEs do it out-of-the-box. Even something as simple as indent/dedent a block of code is "click-and-drag, tab/shift-tab" in an IDE, vs. ":<range declaration>s/^[^$]/ /" in vim.