I listen to Live ATC because I enjoy the sound from Kona International Airport. As a triathlete, it is my goal to get back to Kona for the Ironman World Championships, and listening to the feed from Kona brings back great memories of The Big Island.
In the past my jobs have had me travel to all corners of the contiguous 48 states, and I enjoy hearing the ATC from the places I have been. For me, the flying was always the fun part.
I also like to listen to places I haven't been, such as Australia.
All in all, this is a great site!