Two things.
1. Its not just me being old and reminiscing over my childhood, because I don't care about the 2600 or NES or Genesis (save for Working Designs games on Sega CD) or Master System I also had. SNES was just special.
2. Its not because of my youth perspective and first time experience as a kid that I was in awe. I recently played Xenogears for the first time in my 30s and while the gameplay and graphics were horribly aged and clunky I was completely stunned. It became my #1 game of all time at age 30. Ergo in my 30s I played a 17 year old 16/32 bit RPG I had never seen before in the same time I had a 360/PC/PS3 and still got that OMG WOW experience from a game I hadn't played when I was younger. Its because the games were just awesome and stand the test of time. Just hearing Xenogears OST "Flight" or "Wings" or "Small of two pieces" makes my eyes water. This ain't no fond childhood memory.
Its not just rose colored glasses and fond memories. Xenogears for the first time at age 30 in the days where I played Xbox 360 on a 120" 1080p screen, and it blew me away and I got to genuinely recall and experience what gaming did to me in the 16/32 bit days, something that no modern game (read military themed FPS) has ever achieved.
God I about balled when the credits starting rolling in Xenogears. What a masterpiece. Breathless. Never has a game or any story from any literature made the hair on my neck stand so many times. Even right now I can utter the word Deus or Eldridge and prompt a faint buzz in my skin. I still wouldn't fully understand and fathom the depth and scope if the game without reading FAQs, story guides, charcter profiles, back story, Perfect Works, for months after. I reiterate for one last time I played this in my 30s for the first time, after being used to PC and 360 era games. Yes the mechanics and graphics are dated and clunky. But that has nothing to do with the substance. Today's games are all about glitzy presentation but they lack substance.