Not just that, there's also that you can run them via SSH, there aren't a zillion top heavy GUI frameworks, interaction is significantly less cumbersome, and let's face it, they look so much better.

For me, hotkeys are the main selling point. I don't want to operate my machine with one wrist and one finger. I have a panel of switches in front of me, why should it be a typewriter 100% of the time? Moving to keyboard focused interaction, particularly vim keys but anything really, it makes me feel like in operating my machine with my mind, it is orders of magnitude less cumbersome once you're past the learning curve, such that when I have to use a traditional stacking, mouse focused environment I feel like I'm on a dial up connection with my hands amputated and cataracts.