I'm not huge into video games but recently I've been going through an "old school" game craze myself. By far my favorite game system is the N.E.S since it's what I was raised on.
"Old school" games seem to be making a big comeback these days and the price of Atari 2600 and N.E.S systems show it. I paid about $50 after shipping for my N.E.S and then another $10 for a new 72 pin connector so it doesn't blink or give the blue screen they are notorious for. The only good side as far as price goes is that most games go for $3.00-$10.00. I got Zelda for $10.00, and yes, it is quite addictive! ...Just like I used to remember it. My favorite game of all time is still Super Mario 3...I beat it 5 times since I reaquired it and it just doesn't get old. I suppose if you don't want to spend the money on an original system, the 76-in-1 is pretty good, but then you are unable to play many of the countless games that exist for the N.E.S...plus there's nothing like playing on an original.