Even within one category, advances in technology are no longer unambiguous. The first generation of Pentium III processors came with 512K of external second level cache. However, they also come with only 256K of internal second level cache. The new chips have half as much cache, but it runs twice as fast. 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.