This should pretty much be able scale with RAM and processor using a preforking web server, you are effectively running many copies of your application and the

This should pretty much be able scale with RAM and processor using a preforking web server, you are effectively running many copies of your application and the web server is routing them. Many organizations scale out too soon or for the wrong reasons, and some just have ineffecient database queries and other things that result in bad request times that they could also optimize -- which helps the user regardless of scale with faster page loads.