You fail to mention the
Das Keyboard (uses Cherry keyswitches, optional über cool blank keys for touch-typing training and elitists), the current iteration of the
Model M, and even
this little gem from ABS.
Though, they all take up space, are kind of expensive, and don't look particularly good sitting next to anything (recent) by Apple. But I'd definitely use one of them for my future (PC) gaming rig. They last forever. And ever. And ever... (and the Model M can function as a handy bludgeoning weapon for self defense, all 15 lbs of itit ways more than your notebook!)