Um, Solutor, try to get your digs aimed at the correct people.
I'm the one that said touch typists generally don't need backlit keyboards, and I still stand by that. Touch typing doesn't mean you don't make a mistake. In fact, you can type exactly the keys you intended to type, but still use the backspace key extensively, simply due to changing the wording, for example.
Also, if you think people that spend their days in a shell all day use enter more than pipe, you sir are on crack. And not that clear on how a shell is used, really. Average pipeline for what I do is probably 7 commands. I know people where it's as high as 15. And that's counting single command execution lines, as well, such as cd or ls.
Besides, if you want to know how often you hit what keys, just use a key counter. For myself, backspace and pipe are both used a lot more than enter. Hell, most of my keys are used more than enter. That's a general conclusion I drew quite some time ago, after using a key counter for a week continuously.
Then again, I'm not the average typist. I spend most of my day writing C/C++ code or LaTeX source files. Sure, enter gets used, but less than most other keys.