As I've suggested throughout this thread, everyone has personal things they enjoy. You're not going to get that from radio, regardless of where the playlist comes from. Keep in mind that historically the record industry became nationalized long before radio. And most of the radio people who played those regional hits are either passed away or retired. Even if a playlist is made locally, it will be drawn from national charts because there aren't local resources available from that time. The only people who have memories of those regional hits are people like you.