Wayne's World oozes nostalgia. Just watch the first 3 minutes and see the long-lost world of 'Chia Pets', 'The Clapper', 'Zanthar', and generally awful (but hilarious) commercials.
I think my favorite thing to look back on during those times was the terminology. Let's bring back sayings like "Groovy", "Mental", and say "Party On" instead of "Good-bye". You could likely compare bringing back these one-liners to a pair of new underwear. At first, it'll be a bit constrictive, but after a while, it becomes a part of you.