In all seriousness, I really do think that MSFT has an uphill battle when it comes to having non-enterprise web developers adopt IE as their primary platform for development. I'm sure that IE 11 is/will be a perfectly fine browser and comparable to Chrome/Firefox, but they still have the requirement that you must use Windows.
I have no problem targeting IE11 as an end-user platform for my apps, especially now since it appears that it's a very good , if not great, browser, but I have absolutely zero desire to use Windows as a day-to-day OS for development. A large portion of the tooling that I (and I suspect a vast majority of other engineers) require either doesn't exist on Windows, or if it does, it's crippled or hacky.
Essentially, moving to IE over Chrome/Firefox nets me little to no appreciable gain, and comes with a huge negative problem of drastically impacting my productivity.