I'm writing this from the standpoint of someone who did a small game project with the rift dev kit 2: It's good that they're taking their time.

When the DK2 was released, the drivers were a horrible mess. The hardware was kinda okay, if you didn't mind seeing the pixel grid. Blurring was better than with DK1, but still an issue. Lots of people still got motion sickness from just wearing the rift for a short amount time.

Now, don't get me wrong: I'm exited for VR. But I don't want a piece of so-so hardware that's just gonna lie around on my desk. I want something that's actually supported by software (games) I use (play) and fun to use.