I dissagree, despite PC gaming having a lot less games in the past it had a lot more significant exclusives and felt like it was worth owning a capable gaming pc along with your consoles. Even during the 7th gen you had at least crysis and starcraft 2 looking way beyond console graphics.
And in general PC has no real quality good rts games anymore, like Warcraft 3, Age of Empires 2, Battle Realms, C&C and so on. Blizzard is more busy to make a fps game , a dota clone, a warcraft card game or a mediocore warcraft movie rather than to make a new real Warcraft game.
For me these exclusives truely mattered, Warcraft 3 and the promise of Starcraft 2 is what innitially made me go to the PC route instead buying a PS3 for 600$. Today its the completly opposite with Bloodborne being now my favorite game of all time, only on the ps4.
Today i get almost every game now the pc gets on my ps4, and i think with the PS4 Neo and frequant console upgrades the library will just keep growing and growing where it one day the difference will be small in comparison to steam. Just today i got the Last Blade 2 on my PS4 and vita TV, is this avaible on steam? Last month i got Resident Evil 6, 0, 1 remasters, Valkyria chronicles, Gravity Rush and so on.
And the power advantage with the neo will also become more irrelavnt, espacially if i can also play my exclusive in better performance as well, like Bloodborne.