That's the time when audiences abandoned AM for FM. When any small town FM near a larger market was bought up and moved into the big city. Countless jobs and learning opportunities in those small towns were lost. The market for talent, real talent who, starting out in those now lost small town radio stations, over the years had crafted their abilities and who could daily create a great show, was stretched thin. The result being countless speculator broadcasters hoping for a quick dollar with one of those rimshot FMs ending up with great voices but marginal talent. Once programmers quickly found that entertainment value couldn't be maintained, restrictions were instituted. Playlists, liner cards, all the litany that most nay sayers still list today as the sins of corporate radio were given birth. More players meant smaller pieces of that proverbial ad revenue pie for everyone. Costs started to be cut. Once strong AM stations ended up with automation, network programming or a flip to the easy money of paid religion. Markets that once had a handful of FM signals saw that number double or triple. And those new move-in FMs, few to none making the same money as their FM predecessors, were always willing to cut their rates to get the buy. Add in the mistake of docket 80-90 as the 80s ended and you should clearly see that if anything, the era you claim as "best time" was actually the era that created all the problems you and others endlessly bitch about as wrong with radio today.