I am glad to see that we are having a healthy debate here. I'll hop in.
It is an interesting question. On one side, you can get a PS4 for now, and a 6.5k game every month or so. That makes it around 78k a year for 12 games. 12 games might be a little too much so let's stick to 8 games per year for now, that is 52k.
Now, for PC, you can get a R9 280X/770/780 for now, which will cost around the same as the initial buying of the PS4. Almost all the games can be pirated, except for multi-player ones of course. Let's say we will buy 2 games per year. That is 13k. Which leaves us with somthing like 39k more than what we'll have if we go for PS4.
Now this 39k can be spent on a nice SSD and some other stuff, or a new, upgraded processor and motherboard. Or, it can come in handy in other things, more personal, non-gaming stuff.
At the end, it comes down to preference. PC has not and will not get many of the good games exclusive to consoles, PS4 especially. PC doesn't have many exclusives but for games that are on both platforms, PC will no doubt be superior in almost every single way.