Spanish language stations (no matter how small) get an automatic buy from agencies for national ads. That can really prop up billing for a small station. Local direct sales also tend to ignore the ratings and buy just because you are the only spanish station or two...
That's definitely not true. While there may be some money for each of the major Hispanic markets to be divided among the market's Spanish language stations, agencies don't automatically buy Spanish in small Hispanic markets like Philadelphia, particularly where the CPP is very high.
The Adult Standards did not attract that national ad buy right away, agencies wanted to see some numbers, which would take time to grow. Some local direct sales would buy just off the story of the station, but sales staff would run into apprehension without the hard numbers to show the audience wasn't just 65+ and where people were listening...
Standards, with mostly over-65 demos and nearly 100% over 55 demos does not attract agency buys at all since essentially all buy specs for music radio end at or before age 55. You can wait years, and they will not come.