It depends if it's a lappy or a desktop and even then how much data you really need on the drive. Desktop rigs don't normally suffer from space so separate drives is prefered. Lappy's I say 256gb or larger ssd and then take the spinner and sd card slot and use a usb enclosure and the sd card for back up's and extra data. If these aren't elegant solutions then the hybrid drive to the rescue. Really the ssd in a lappy is all about speed of boot, close and program launching, then energy savings and heat. Once everything is on and opened then the performance of the ssd and hybrid are really the same short of heat and energy use.