I've used the consumer Rift with and without Touch and it really just comes down to the specific applications. There are plenty of applications where it doesn't make sense to use hand controllers (like space sims or car racing games) and plenty where it makes sense (shooters, social communication). In the long run my guess is more and more apps will use hands but we'll go through a skeuomorphic phase in the beginning where there is no clear input standard and we hold onto inputs from previous platforms.

Applications with custom controllers such as racing games or flight simulations will work very well, however games that use keyboard+mouse or gamepad represent concepts ported over from pre-VR gaming and in many cases I believe they will be inferior.

Some of those concepts never made sense to me. I'm talking about stuff like Quick Time Events. CoD: AW even went as far as "press F to pay respects".

Having used Oculus to play Elite, Oculus Touch really is not needed. Good voice controls are needed and possibly Kinect.

You probably used a HOTAS controller to play Elite. But what about games that have you manipulate objects in 3d space? Only a tracked controller will make it fast, intuitive and efficient.

Yes I use a HOTAS controller. You are probably correct, however, even touch shapes your hands, limiting finger manipulation. Something like a glove or Kinect would provide a more granular approach for certain scenarios.

I'm pretty sure that we will see a huge number of different devices to affect 3D worlds, touch being one of them.