Because the people running it need a little time to pick the next song, and sometimes for songs with similar closing and opening Medleys, some pause is necessary.
For one it is a government regulation that radio stations (and TV) tell you their name, frequency, and city at least once an hour at the top of the hour. At other times it's basically advertising.
What I'd like to know is, when you're in the hospital, why does the nurse wake you up to have you take sleeping pills?
What I'd like to know is, when you're in the hospital, why does the nurse wake you up to have you take sleeping pills?