WSOD while trying to install Drupal Commerce Kickstarter
According to Commerce's docs http://www.drupalcommerce.org/commerce-kickstart-2/troubleshooting-kickstart-2-installation

RAM: minimum 128M, more is recommended because your server can fail with this memory if it is at all strained

Since the Commerce Kickstart 2 distribution can install an entire setup and configured working demo, the installation process requires a bit more sustained power. In our early beta tests, installations can sometimes silently fail when it uses close to your memory limit.

So, the answer is, "Scotty, we need more power!"