The more I listen to jazz the more I love and appreciated it. I`ve gone through R/B,blues,rock,reggae and some classical and like them all. There`s just something very special regarding jazz muscians and vocalists.They can take a simple standard and make it unique and personal. Big band,smaller combos,duets or solo, it`s all special. The better your system becomes, the emotion/communication of jazz increases. For example Miles Davis, Chet Baker, Clifford Brown or Lee Morgan, all jazz trumpeters, yet each is easily recognizable by their individual sound and approach. This is true for all the various instruments and singers.
The fact that most jazz is played with acoustic instruments and very often recorded well(compared to most of pop and rock) is an added bonus.