That was my thought too.  The &quot;pain in the ass&quot; factor associated with supporting a non-mainstream architecture is missing from the charts, and moves the dial away from IBM.  That&#x27;s not to say things couldn&#x27;t change, but Xeons are proven, and unless you&#x27;ve got a surplus of money to throw at trying a new architecture (e.g. Google), you&#x27;re better off sticking with the known good unless the predicted gains are sizable.