&gt; Well, if you took away Excel, the banking system would collapse.<p>Lovely comment, and so true.  And you&#x27;re right: for a POC it&#x27;s unstoppable.  I was trying to get to the nub of &quot;why is it perfect for a POC, but not for running an enterprise application&quot;?   That&#x27;s kind of my point, though I admit it was a bit clunkily-put.