I love PC. I would game on PC all the time if I could. But there is a small minority out there convincing the people who've used consoles exclusively, that PC gaming is cheaper; it very much isn't. Even if you build your first one for dirt cheap, that gnawing addiction soon gets you and you're putting 240 rads and 780's in your machine.
I like PC gaming the best; but anyone that claims that it is cheaper, even taking into consideration key sales, is just flat out badly informed.