part of Me is now being played more often than it was before I watched the PV, simply because I think it's breathtaking and, as an artist, I'm a very visual person. So when I see attractive imagery paired with a beautiful song, I'm floored. :p hehe. Translation: I LOVE IT!
Also, Voyage grew on my more after seeing the PV, because I loved the little story behind it.
So yes, if the PV is exceptional, I might play the song more or get a little more into it... but a good song is a good song.