&gt; Good wifi deployment shouldn&#x27;t lose packets ever.<p>You lose packets to radio interference (or collisions). And SMB in particular reacts poorly to packet loss.<p>You&#x27;re also assuming that &quot;good&quot; wifi deployment is a reasonable expectation. People just buy that blue Linksys thing and put it near the jack for the modem. If you&#x27;re going to run wire all over the place for access points then you might as well run wire all over the place for ethernet.