While I can definitely see the ability to type faster as an advantage in some cases, I don't think I'll ever bother going through the process of learning it. From decades of software development I can type fast enough for whatever it is I need without looking at the keyboard and not once have I felt that the bottleneck of my productivity is the the speed that I type. Most of the time goes into thinking how to do it right so that it doesn't have to be done again...
And with code generation becoming better all the time, I believe the abstraction layers were one will have to spend more time on will get even higher.
The correct analogy to me is that being able to run fast will not help you that much in building a rocket to take you to the moon.
I'm open to changing my mind though if presented with a solid counter argument.