It&#x27;s not that far off when you consider replacing just light switches with Z-wave switches in a 2000-2500sq ft home.  Figure there&#x27;s probably 25-30 light switches in a house that size.  You&#x27;re looking at about $900-$1200 worth of equipment just to control just whole room lighting.  If you went the Phillips Hue route, as an example, you&#x27;d easily approach that with 2-3 rooms worth of light bulbs.<p>Add in control of individual outlets, motion sensing, thermal controls, security ... it adds up pretty quick, even for homes of the &quot;middle class&quot;.