I get the feeling you're taking this personally.
Having a look at current prices, you're right, 6k is a little low (my brain is running on better rand/dollar rates), but 20k is insane. For a starter, 10k would be more than enough for 1080p 60FPS. My 960 and second gen i5 from 2011 handles that just fine at a mix of High/Ultra. Looking at my receipts, from 2010 to 2015, I've spent 8k on my machine, although that was with better rand to dollar rates. Lets say you bought a PS3 in 2010, and a PS4 in 2015. Who would have spent more?
I can't find any current deals that have a console at 5k. The cheapest I saw was that one day CNA XBone deal for R5500. Looking around, non-sale prices for consoles are around R6.2 - 7k. I also found both PS+ and Xbox Live are going for R750 for a years membership. You
have to pay that if you want to play online, which is another can of worms entirely. I also don't think that's a good deal, as usually the games you get are quite old. Buying the specific games you want on sale or in a bundle on PC will total to a similar price at years end, and the online play is free.
Cherry picking examples for prices of games goes both ways.
Currently on Steam there are 172 games on special. How many of those are cheaper on the Xbox Store? How many of those are even available on the Xbox store?
That's a potshot, sorry. "whistling:
Just today, Sony was in the news as they're charging for PS2 games again, even for people who already bought them on the PS3. At least the PC is always backwards compatible. I stand by my belief that PC is an all-round cheaper alternative to a console, and a better gaming experience thanks to the higher framerates and the possibility to upgrade in the future. Plus, PC gets the highest number of exclusive titles. There are a lot of games that will only work with a keyboard and mouse.
"Exclusive" titles on the PS4 or XBOne are there for business reasons, not compatibility ones.
I personally find the argument that a XBOne or a PS4 has a fundamental advantage over a PC, in any regard, flawed. We can agree to disagree on that one.

Now the Wii U on the other hand... an argument can be made there purely because the Wii U does its own thing. Nintendo isn't competing with Sony, Microsoft or Valve. Honestly, I don't even think they know who they're competing with any more.
Saw the edit: I think that term is silly. I also read books and watch films. Does that make me a filmer or booker too? Occasionally I see stage productions. Am I a stager? I don't see why people who play games need a special title to feel as if they're part of an elite club. If I don't need a title for other types of entertainment, I don't need one because I also play games. I'm sorry that I don't fit the mold, but I see no reason to buy a console.