Isle of Man is 80,000 (official) population - that size market can easily sustain 4 stations, especially when two are funded by the Government to the tiunme of over £1m a year.
Too many nay-sayers doubt radio and are so negative. Why not think positive, and consider HOW stations can be funded. Spot commercials are only one of about a dozen possibilities for funding.
Scarborough has 3 or 4 stations, (none BBC) and thats only 75,000 population. Broaden your mind and think HOW many different way that stations can be funded.

Oh, and the Manx consider they are IN the IoM, not on it. They would tell you off for saying 'ON', assuming you ever visited this beautiful island.