Some full disclosure is needed here, I'd say. After all, it is very much in your own interest to keep enthusiasm for '80s music appear strong in the Sacred Sales Demos for as long as you can, right? Songs that now date back 50 to 60 years -- as old as '80s music will be in the 2040s -- fell out of favor with radio and (more importantly) Madison Avenue and its clients out there in Corporate America during the '00s.Within the circle of those of us involved in programming CH stations, you would be seen as being off by about a decade or a little less.
Not as soon as 2030 ... maybe as late as 2040.