Well I currently attend the High School for the Preforming and Visual Arts and I've had four former students discuss the importance of odd meters in New York because the majority of the music they play are in 7/4 and 13/4. And as for an example of 13/4 time, they're very difficult to find but this is a fairly good example https://www.youtube.com/watch?v=0BCwpKJgsSw

I also have sheet music for a famous jazz song called Solar that's been rewritten in 13/4. I could somehow upload it if need be.
A great example of 7/4 time is "Pussy Wiggle Stomp" by Don Ellis, who was big into using odd meters.