I could buy Mr Lukzo's statements in the context of a transition. I have an SSD (128GB), and use it for my OS and Games. But it is still cost~prohibitive to use an SSD for storage, and so I also have a 1TB WD Black for music, video, and other records. Both for cost's sake and also for convenience sake: if/when I build a new rig, I can simply move the storage drive.
Unfortunately for Seagate, they have yet to deliver a product that provides the speed of an SSD with the capacity of spinning discs. I'd buy one if they did. But they don't. So I don't.