Not really i just think there's so much out there that a lot of people aren't just playing mainstream titles.
Go back some years and some people would just grab the big guns, call of duty, battlefield, wow etc.
Nowadays a lot of these long lasting series have "died" out, but at the same time people show more diversity, a lot of people play their main game or two, and play some indie/fun games on the side. Not to mention a lot of these games targetting newer audiences over the years makes you grow away from a series. I played call of duty since the very first release, but due to me playing FPS for sooo many years and the game growing in a direction i didnt like i absolutely cant touch it anymore.
Also, you have xb1, ps4, pc and more.
Some people i know bought console just for certain exclusives, depends on your preference. I bought a ps4 after being hounded by a friend, i got 8 premium games with it (GTA, Destiny, COD, Fifa etc etc etc) and i cannot touch it, it's just awful, but that's my opinion. The graphics hurt my eyes.
I grew away from WoW when Cata was released, when i came to realise that i never really enjoyed the game - the content itself i think is just average, i actually only ever played for the people i played with. They all left during that xpac so i did also, we all play for our own reason.