And there are lots of options in mouse selection, MMO mice can have dozens of buttons, the Roccat Nyth even allows replacing of the side-buttons with custom molds.
I couldn't bring myself to pay $479 for a keyboard and then have to relearn how to type after spending close to forty years typing with one hand on a regular QWERTY keyboard. Last time I checked, I can type at about 50 wpm but since most of my typing is coding, as long as my typing speed can keep up with my thinking speed (with autocomplete), it's not the bottleneck.