I remember when the 10k RPM WD Raptors came out. I think I had each iteration of the series. Even though they all spun at 10k, each one was faster than the predecessor. Most HDDs now still spin at 5400/7200 RPM like they did 15 years ago but knowing what I know about the Raptors, that does not limit their speed. So where are we now? Are today's WD Black (or any performance HDDs) faster in terms of seek times, sustained data read/write performance than they were 10 years ago?