PC gaming has become more niche, relatively speaking, than it was 10, 15, 20 years ago. But I guess no worries, eh. PC gaming is a treadmill when/if you try to keep up to the technological bleeding edge and/or you want to play those bleeding edge games and have to keep upgrading. That's what killed it for me, having to buy a new piece of hardware (graphics card, memory, cpu) every 4-5 months to play a game at 30fps or better.
I read the entire linked article and while the death of PC gaming is much exaggerated it's not what it used to be. I am pleasantly surprised at least once a month with some flash or java internet game that is fun/inventive/cool enough for me to put more than a few hours into it. The last time I bought a PC game to play was in the last millennium. Tastes change as you age.