PCs don't really have generations. I just hate it when people compare consoles to PCs. It's unimaginably pointless. What about super computers? If people were making games for super computers, it would bulldozer over any PC dozens of times over without even trying. The thing with PCs, is that there is a large variety of systems and no limit for cost, unlike a console. PCs are like trees, they can continue growing as much as they want and will for as long as they can. Consoles are like trees cut down and made into desks. They aren't going to change. They're both very good at what they do, but they are very different.
I never stated the PC did have generations, not directly at any rate.
"Well for starters, the best looking games this generation wasn't even on the PS3 or Xbox 360, it was on the PC."
It was definitely implied.
A new generation of consoles should improve PC graphics also. They aren't going to be held back by 7 or 8 year old consoles. Graphics can be a very important thing for people. I can think of dozens of games that wouldn't have been as good if graphics didn't improve to allow 3D. So it's not like buying a new console for improved graphics is a ridiculous concept even compared to PCs. Consoles are more powerful than PCs priced at the same, PS4 was estimated to be a 500 or 600$ PC. This is without even adding the benefits of it being a console. According to John Carmack, consoles give about twice as much as a PC at the same specs.