Great comparisson, but you forgot a major turbo consideration over the SC ... boostability. To increase the boost of a SC requires that you wrench off the old pully and wrench on a new one, which often requires a new belt. This leads to a lot of down time for track side tuning. A turbo on the other hand can be tuned to increase boost by simply adjusting the boost controller. It is possible to go from 10psi to 15psi in a lot less time and it requires nothing more than a boost controller/laptop. All the preconfigured settings can be loaded and off you go.