Here's why people buy consoles:
PS4 costs about 20000 RUB (don't know what that is in USD), while a high-end gaming PC costs 150000 RUB (for the pc case alone). Sure, the games are more expensive for PS4, especially if you can go to the dark side on PC (you know what I mean) and get them free.
Ease of use. All you have to do to play on PS4 is buy the game, put the disk in - and you're good to go. PC, meanwhile, you have to do all that (or download the game from Steam), set up drivers, choose graphics settings, and whatever else (like maybe your mouse stops working midgame, or videocard overheats).
Bigger screen. TV's are usually bigger than monitors, and higher in quality (not in my case though)
Ease of multiplayer. Pay for PS online (forgot what it's called), and you're done. There are always many players online (since there are a lot of PS4 users). PC - sometimes the servers are down, sometimes noone plays your particular game, sometimes you get disconnected a lot, latency issues, etc.
Those are the reasons off the top of my head, maybe someone else can add more
The first reason is pretty much the only argument that makes sense. But only to a degree - since you can easily just build a mid-range PC for a very similar price as a console has, though the XBOX ONE X is currently a very good value for the buck - nobody can argue with that..
The rest is just crap that get passed along from the old times.
Ease of use - buy game, click download, click play. That's all.
Bigger Screen - because a PC cannot be connected to a TV right?
Ease of multiplayer: servers down - that happens for all games, including the ones on consoles ; no-one playing a game - happens to consoles a lot ; getting disconnected and latency issues - those are issues with your internet, not your computer.
But this inspired me, I'll start making a series on why these "reasons" don't make sense these days.