Well, PC gaming isn't "dead," but it's certainly been seriously wounded several times in the last several years, with signs of continuing that trend. Look at all the previously potential-packed IP that got ruined by whatever corporate gaming conglomerate (coughEAcough). Look at all the "smash'n'grab," half-assed, heavily monetized (read: fragmented and compartmentalized; you buy a vanilla base game and then each chunk costs more...) crap out there. Look at all the over-hyped, glorified benchmarks-masquerading-as-games (crysis, bf4, etc.).
PC gaming as a thing that lots of people still do and enjoy, and intend to continue, isn't dead at all; the companies releasing most of the games are killing it, making it more and more difficult for anyone to buy a GOOD game, and get real, long-term fun out of it. "Back in the day," it used to be easy to get fun out of a game. Now it's a lot of work! (and costs ridiculous amounts of money just to have hardware that can even take advantage of all the wonderful new eye-candy without hitching or stuttering)
Moving on...
Consoles are "good," for one primary reason: they are standardized and optimized, and everything made for them is made *specifically* for them and their unchanging hardware, and is done without the resource overhead of an operating system like Windows (too bad no directX anywhere but windows and consoles!), or the problems that come with a wide spectrum of different hardware in each machine.
Also, i think (think!) the reason they still use removable disc media, is more about control, DRM, and... well i forgot the other factor i was going to mention, but it's mostly this. It might be partially due to convention as well (people are used to it), but it's mostly those other things; you can't have people easily toting around 100s of GB worth of games on several USB 3.0 portable SSD-sticks, and a cloud service with user accounts so you can take your games anywhere there's a console to play them. That would make too much sense, and would probably be crackable somehow. You can't download a physical disc, so the console's parent company can more easily and cheaply control who is allowed to access what, and ensure they're not getting screwed out of any profits by people (who likely feel they are the ones getting screwed!) sharing stuff without worrying about damaging it. Plus, having a physical item on a shelf in a physical store, allows them to exploit the art of consumer psychological manipulation through packaging, and the "oh! look! i must buy this now, since it's sitting right here and i can just take it home and play it immediately!" People are indeed suckers (especially those with heads full of fantasy who chase shiny things). But sometimes i wonder how much of a sucker we PC gaming enthusiasts are, since we spend thousands of dollars on hardware for which almost no game is ever properly optimized.
I like mods, and dislike lock-ins. Even with all the annoyances, PC gaming is still superior IMO. Doesn't mean i hate anyone who opts for consoles. I can certainly see some valid reasons to do so, but those reasons aren't enough for me.
Xbone and PS4 might be "just a crappy PC inside," but at least they don't require tens of gigs worth of bloatware that tries to consume all available ram, just to enable directX gaming (coughWINDOWScough). PC gaming would be far better if directX didn't require windows, and/or if there was a competitive non-windows alternative (afaik, OpenGL isn't good enough, for various reasons... but i'm no expert in that regard; i would like to be wrong!).