sounds an awful lot like
No wireless. Less space than a nomad. Lame
Even for the nerdy, a long feature list is not what actually makes people want to use a tool. In the case of Emacs, it's the customizability. With Vim, it's the simplicity, speed and focus on its purpose. Other environments have their own advantages that don't fit neatly in to a feature list.
Vim is here, now, the very second you need it, over an SSH connection, and far, far more customizable and with more useful plugins. The advantages of Visual Studio (namely, integration of features and great code completion) are lost when a framework fits in your head and you've automated most of your tools.
I say this as a person that spends 50% of his time on VS, the rest on Vim.
Second, how is Vim more customizable than VS? I can't think of anything I can't do in VS. There's plenty I can't do in Vim.
Vim does load faster. Although single file load with VS isn't too bad, but certainly no Vim.
And don't use TFS... that's just bad mojo.
I say this as a person who spent 12 years of his life using Vi/Vim before touching VS for the first time.