If you're a gamer with a healthy taste in genres and a reasonably balanced life, then every console can work as a sole gaming system. The Wii was my sole gaming console during that Era, and there are STILL Wii games sitting in shrink wrap in my bookshelf, waiting for their number to be pulled from my backlog. People here use to think I hated Sony and the Vita because it was the butt of many of my jokes (they conveniently ignored the Wii U was too, I might add),but I'd play a Vita to dust if I had one. Outside of things that die within a year like Ouya and Virtual Boy, any console has enough to satisfy any complete gamer over its lifetime.