Asking as someone who's listens to Spanish radio in NY but sometimes streams Caribbean Tropical stations, why's it so different in the Caribbean compared to here? I'm going to use Telemicro's "Independencia F.M." and "KeBuena" in D.R. as examples. "Independencia" and "KeBuena" in D.R. are mostly Bachata, Perico Ripiao (Merengue Cibaeño) and Merengue. They're pretty successful from what I've seen. Let's compare them to Spanish Tropical stations in America and the difference is HUGE. Univision's "X96" and SBS' "Mega 97.9" in New York mostly play Salsa & Modern Latin Pop while SBS' "Amor" in New York mostly plays late 90's/early 2000's Bachata along with Modern Latin Pop. Now, I'm going to compare that to iHeart's "Rumba 100" in Orlando and SBS' "El Zol" in Tampa. "Rumba" is pretty much all Modern Latin Pop with a little bit of Salsa and Bachata. In Tampa, SBS' "El Zol 97" in nearly ALL Modern Latin Pop from what I've seen. Why's it so different from the Caribbean?
The tastes in "tropical" music are very different from country to country. In the case of Puerto Rico, a tiny bit of bachata goes a long way and merengue on the radio is limited to the station in San Juan that targets Dominican immigrants.
In Colombia, cumbia is nearly dead, salsa is appealing mostly to those over 40 to 45, and the genre that has been prevalent for several decades is vallenato. In Perú, it is tecnocumbia but also that now appeals to older listeners.
And so on, nation by nation.
In New York, stations have to appeal to the immigrant population from a number of countries, playing what will be acceptable to a variety of national origins.
Years ago, when I programmed Z-101 in Santo Domingo, I found the station mixing salsa and merengue. I immediately got rid of the salsa and ratings improved. But when you program a station with music that any other station can duplicate easily, you are vulnerable... so I brought in two personalities, Willy and Marino, to do a talk show that we named El Gobierno de la Mañana and eventually moved away from music.
My point is that "tropical" is so competitive that none of them is particularly distinctive and none is vastly superior in ratings... so using Santo Domingo stations as reference is not appropriate. In particular, people who migrate don't always have the same musical culture, education and taste as those who remain in a nation.