I collect most actively for the Atari 2600 and yes, I play it quite regularly.

If there's a disparity in my play/collect ratio, it's pretty much in any system from the 90's that I happen to own. I'm all over the 1980's and everything from PS2 up, but something buried in my subconscious keeps me from giving 90's consoles the kind of love which I see (and wholly respect) a lot of other people here affording them.