Well, the parcel that those towers were on sold for $757,000 according to Greene County property records. Part of the new site is in a flood plain, so they got it much cheaper ($88,000). I'm not sure how much it costs to put up 3 towers and grounding, but they did make out OK on the land.
As for if anyone listens to the station, it probably doesn't matter too much. Most the day looks like brokered preaching, so I would figure the pay-for-pray brings in good money.