It's not on the air any more, but radio theatre isn't entirely dead. The Atlanta Radio Theatre Co. and some others still produce either re-productions of classic shows or original work, presented either live (often at science fiction conventions) or recorded (CD's / MP3's or downloads). And the reason is that radio theatre is still a wonderful medium for sparking the audience's imaginations for nearly no production money.
Abusive comment hidden.
(Show it anyway.)