I exclusively use server or workstation/server class motherboards from Supermicro or Tyan not just for myself but also for my parents, so I can then largely ignore the hardware for 5+ years plus not worry about non-reproducible errors from radiation flipping a DRAM bit. I've done this since 1995-6 and never had one fail in the field except through an act of God (http://en.wikipedia.org/wiki/2011_Joplin_tornado).
For this purpose, decreasing stress from thermal cycling is good.
(Yeah, they're grossly overpowered for what my parents do, but since I'm not including my labor in the cost they really don't cost that much.)