That's a bullshit list. A list made by someone who isn't a PC gamer. Here's the real list.
#1 PC gaming in the long term is cheap.
#2 No monthly fee for playing mulitplayer games.
#4 Mods! How did this never get mentioned?
#5 Backwards compatibility. Dos games still work with DosBox.
#6 Emulators! Anything from SNES to Wii emulation is done on PC.
#7 Steam! Origin! GoG! PC gaming fights for your money.
#8 PC master race. I just threw that in there for the lols.
The life cycle of a gaming rig in my house is less than half what it would be in the console world. Its several times more expensive depending on what level of quality you are striving to achieve. The three G-Sync monitors I have, 2x Titan X's I've ordered and everything else I have bought or will buy in the next few days to weeks is anything but cheap. Gaming for me hasn't been cheap in any context you can imagine.