That makes sense if you're using Emacs on a laptop.
However, when you're at your desk, the most awesome Emacs upgrade is to buy a Kinesis Ergo "Contoured" keyboard (http://www.kinesis-ergo.com/). It moves all of the control/alt/Apple/Meta keys from all of the random locations to your thumbs and so once you get used to it, it's way, way better than anything else.
The only downside is that it only comes in one size so if you have large hands / long fingers it might be too cramped.
For the skeptics, once you get used to it, it's actually quite easy to go back and forth between the laptop keyboard and the Kinesis. I.e., very little mental dissonance.
There has been some discussion on the importance of a good chair. I find the keyboard a very important component, perhaps as much as good office furniture.
I use to half joke that my disdain for Microsoft is not as extensive as it may appear from one reading what I post (I got a -8 mod a couple days back for saying no real programmer would accept programming under Windows). In fact, I love several Microsoft products and, for me, the three best products they do today are the natural keyboards, the mice and SQL Server. In that order.
I loved the Z-80 softcard too. Would place it above SQL Server if it were still in production.
It's because they decided to focus on their more profitable software business, where they are marginally competent, while their core competency, the one they are unanimously praised for, is hardware gizmos.
However, when you're at your desk, the most awesome Emacs upgrade is to buy a Kinesis Ergo "Contoured" keyboard (http://www.kinesis-ergo.com/). It moves all of the control/alt/Apple/Meta keys from all of the random locations to your thumbs and so once you get used to it, it's way, way better than anything else.
The only downside is that it only comes in one size so if you have large hands / long fingers it might be too cramped.
For the skeptics, once you get used to it, it's actually quite easy to go back and forth between the laptop keyboard and the Kinesis. I.e., very little mental dissonance.