Losing the high ground to what?

Ubuntu 14? Windows 8? Chrome OS?

I'm not running OSX as a server OS and don't plan to. But even with the latest 10.10.1, I still see uptime in terms of weeks including mandatory reboots due to OS updates. I think it's easy to say that other desktop OS's are years behind and falling farther behind with each release.

As has happened in prior OSX releases, this latest release may have been rushed. The next release will probably address current bugs.