Not to the degree there is today. But when National Life sold WSM, that was at a time when there were maybe five stations in Nashville, all AM. How many are there now, not only on AM, FM, satellite, online, etc, all competing for the same ad dollars. The competition has never been greater than it is now
In 1981, when NLT sold the WSM radio properties, there were 9 AM stations with a 1 share or more, and 9 commercial FMs with over a 1. That's 18 stations with significant numbers, and two more just under a 1 that also showed up. Again, not counting non-coms.
Today, there are 2 AMs over a 1 share, and 17 to 18 commercial FMs plus two non-coms that regularly show over a share.
Among commercial stations, there is only a one station difference in the one-share-or-above count 35 years later... even after Docket 80-90 allowed a number of move-ins and upgrades.