Best-Of Compilations

When I used to watch a lot of television, I can remember seeing certain commercials for "best-of" compilations (like Ultimate '70s or Piano by Candlelight Platinum) so many times that the little song excerpts would merge in my head into a new song. Even now, I can still remember chunks of songs from some '50s love songs compilation commercial I saw in elementary school, and I cringe when I think about it. I always found it jarring when I'd here the full version of some song that I only knew through an excerpt from one of these commercials. It was almost always disappointing; my brain was so used to the commercial that the real song seemed worse than a chunk of it in the context of the commercial. Or perhaps the song had been built up too much by being associated solely with a "best-of" collection. Anyway, not sure if others have experienced this; just a random thought.