I personally don't like jumping, but I can understand the thrill. You feel a lot of power when you go over a jump. When you're just riding, you don't feel that 1,000 + pounds of muscle, but over a jump, you can feel it. Nice feeling, but not for me.
Also, many English riders are pressured to jump. I've been called a total noob because I don't fly over 3 ft. Fences.