My 6-year old WHS box recently died. I decided to put a new server together with the WHS hard drives expecting to have to reinstall the system. Even though I'd bought a Haswell MB which only supported Win 7 and 8 by mistake, WHS fired up without a problem and only needed a driver for the Ethernet controller to run perfectly! Even with a $80 Pentium CPU, it's way faster than it used to be.
Anyway, this exercise brought me face to face with the reality that WHS 1 will soon reach end of life status. And the question is, what on earth do I replace it with???
And do not suggest a NAS box!!!