I play old games all the time. I own a NES (dead), a Megadrive (possibly dead) and even an MSX (alive and kicking). I used to play on my Megadrive until it stopped working. Same for my NES. Now I emulate them both, but it's just not the same.
Annnd...part of God Hand's charm (the game I'm going through right now) is because it resembles old beat 'em ups a lot (except it's fifty times better), mostly the enemies. You have guys in tight leather with mohawks, women in fetishistic outfits with whips and of course, kung fu masters. Sounds familiar, doesn't it?
That's why it's so awesome, other than it being totally awesome in every other aspect. All of you need to go and play it right now.