Dude, Doom isn't even dead yet and it's gotta be more than ten years old, as I remember playing it while I was a 5th grade student.
SEIV will live until SEV comes out, when the SE series stops, the latest generations of the game will probably live on another 10 years.
Now that I've got two computers in my room I will spend a lot of time on SEIV, as I can play two games at once without windowing
And yes, I was born with an 8086 lodged in the side of my head.