Retro-cycles are now a normal part of pop culture and have been for sometime. It is well documented that it's traced to the emergence of 1950's youth culture and their post WWII expendable income. You wait 20 years and there it is again. Lately Tupac and Kurt Cobian are commonplace, but you see that already.
Video may have killed the radio star, but never fear, music fans! Bands that were big in the '80s are coming to a stadium near you this summer, for "reunion," "farewell," and "redux" tours -- because the radio star needs to pay for college for his kids, and rebuild the retirement account that was wasted on hookers and blow back in the peak earning years.