Both versions of the PIII are still available and, when they run at the same clock speed, they have about the same price. Top performance comes at a price. They have returned to their May levels. This is not an advanced, modern device. The design of today's keyboard is not much different from the electric typewriter of thirty years ago.
Good design is still important.
A moderately fast typist may press 200 keys each minute, all day long. It is not very difficult to make a keyboard that can record the keystroke. It is much more complicated to make a keyboard that feels good and is comfortable to use. What resistance does it provide. The least expensive keyboards feel soft and squishy.