I just got a brand new Lenovo x230 with 7200 RPM hard drive. Now I understand SSD would've been better, but why hasn't 10k RPM become the standard by now?
Found some reasons from a forum post;
Seem like good enough reasons!
10K and 15K drives are common in the SCSI/SAS hard disk (server) market, but as point #4 states - most users don't need much more performance considering the trade offs of drive noise and cooling. Most regular computer users are not going to notice if a file transfer is running at 60 MB/s or 120 MB/s - but people responsible for maintaining enterprise storage sure do. Every last MB/s you can squeeze out of a hard disk is required when you are talking about a large RAID array or a SAN. In addition to the speed, most server rooms have large cooling systems that cover the entire data center, so cooling and/or noise are not a big issue. If you have ever been in a data center, most of the background noise is coming from the cooling system anyways.