"Huge" part of the marketplace, that you're referring to, has no choice in the matter. It comes from a single vendor who is refusing to play with others because (in my opinion) their main selling point is that they're "different".
And it's not really fair to say that their market share is "huge" with less that 18 percent in EU, this year (source below).
I know that in the past one of my motivators to NOT switch mobile phone vendors was that I had a significant number (home, office, car, travel,...) of chargers available for a particular vendor. And going to another vendor and having to re-stock was an added expense and a bother. Now, I don't have to think about that anymore.
Also, one thing that people seem to forget or misunderstand. The EU directive for micro USB is for charging-only. It doesn't mean that there can't be another connector on the phone for other features. Like connector for car holder on HTC One X, for example.
The only thing that I envy the iDevice crowd is the accessory market, though. Although (again in my opinion) problem with accessories for android devices isn't so much connector oriented, as much as it is location oriented. If all the vendors would put USB port in the middle of the bottom of the phone, then accessories would be able to take advantage of that with relative ease.