I have to say too that there was just something about the SNES era. I didn't even have many games for that system but what I did have was great. I'm playing through Super Mario World right now and it's just amazing how the game looks and sounds. It was nintendo's first system that was in stereo and they took advantage of it with simple sound effects.
Also, the graphics on the system were so different than you see today. Super Mario World for example is very colorful, the animation is great and there is a lot of small details in the environment. Many people would probably argue that Mario Sunshine on the gamecube has better graphics than SMW but I wouldn't agree. I prefer the graphics on SMW over Sunshine because of the color and how clear and simple they are. Some of the effects in Sunshine are great, such as the water but overall it feels less inspired than the graphics of SMW.