Yeah, Casey did quite well. Made a lot of money when he and his partners sold “American Top 40” to ABC back in the 70s. Kept hosting the show for years (until he was finally dropped) and was a profit participant as well. Started another countdown show which continued until his retirement, and he had a TV program for several years as well.
Interesting note about “AT 40.” I was a part-time DJ in high school and college and worked at stations that aired the program. At the time, Mutual was the only network that had taken the plunge into satellite distribution of its programming; the rest were still using phone lines and since a lot of stations that weren’t ABC affiliates aired the show, feeding it over phone lines wasn’t an option, and the audio quality wasn’t good enough for a music program.
Instead, the program was recorded on Monday in LA, then pressed onto three LP records, boxed and shipped out (via US mail) to affiliates for airing the next weekend. In the five years I worked at AT 40 stations, the post office only missed delivery twice—that’s why we always kept a few copies of previous shows on hand, just in case.