First of all: Hello retro gamer community!!
Yes, I do play new releases, although recent games are quite different than old ones. I go for new when I want a more immersive experience, with a cinematographic feel. I go for old when I feel upset with something in my life or just want to kill time.
In the end, it's difficult to explain the feelings. I do enjoy new releases and I have a good computer for high performance and graphics. However, new games are way too easy and are not as fun as the old ones, IMHO.
Yesterday I started playing Batman: Arkham's Asylum (or something like that) which was borrowed/recommended by a friend. After 15 minutes I was playing Mr. Nutz on the MD.