This one might be considered off topic because it is not classed as a LPFM but as a commercial FM. In reality it is almost identical to a LPFM.
Located in a small town in a border state, the town is a quiet community outside winter when people come to spend the winter months in this town.
The station, while commercial, operates at under 250 watts. It's tower is a telephone pole in the yard of the private residence that houses the station that has never had an employee, only the owners.
When they got their CP one of the tasks was to create the format. Being a retirement community, a nostalgia format was selected. With the budget, the owner smartly went to the community, borrowed personal music libraries and then bought a good number of albums. With selections picked, they were recorded on reel to reel tapes, fully announced with an ID added every 3 songs. This way they were playing songs people in town liked enough to add to their music collections (grassroots research at its best). Keep in mind a personal computer was years away at this time.
The operation was playing the reels of music and manually inserting commercials, PSAs, Promos, etc. Weather and community announcements were added 3 times a day every day.
Since the population swelled in winter, I'm guessing 90% of the annual billing came in winter as they had only 1 advertiser on the air the rest of the year. I got the impression virtually every advertiser was based in the town. I think they charged $6 for a thirty second spot, so the spot load was always minimal.
It was not that $6 was an expensive commercial rate. Let me stop here and share some observations. Like it or not, most listeners tune to radio for music. If you have great programming, the radio stays on all day. Very long TSLs. When it comes to the number of commercials you need to keep yourself 'top of mind', it is minimal on stations where listeners tend to stay with the station. This station enjoyed this. Thus, you might spend $15 on cheaper spots on another station to get the results you get off a $6 spot on this station. In this respect, great programming, little competition and fewer commercials can provide exceptional value to the client even if the rate is considered high priced compared to competitors. Another point is in a small town, most advertisers want what is generally considered an underwriting spot. The point of advertising is to stay 'top of mind' not to advertise sales or price and item. Considering the business comes in winter, the business is more apt to want to say hey, we exist and here's what we do and how to reach us.
As for billing, annually the total might pay a salary for a non-skilled or semi-skilled employee but that was okay for the owner who was not reliant on the station's income. Sure, if he chose to sell in area towns he could have billed many times that but selling local accounts and serving his community was his purpose.
I mentioned music as being why people listen and this town is no exception. When I visited the format was on computer, sounded great and music had been updated to oldies based lite-rock. It ran a traditional beautiful music clock. By this I mean unannounced music and liners or ID on the quarter hours. The station does no news or weather, just music with a 5 minute daily devotional each weekday and a 15 minute program Sunday morning. PSAs dropped by the station get aired a couple of times a day, what few are dropped off.
The station, when I visited, had no advertising outside the winter months. It was wall to wall music with liners and IDs. The town loves and listens to the station loyally.
To me this station has honed in on what the small community wants and does it well, is located in a home, was built on a tight budget and is confined to serving the town even though they could increase power and sell in area towns. While a commercial station, this one, in my book, it a Low Power FM at heart.