Exactly. Before I ever got a job programming I couldn't leave it alone. I simply had to do it. I enjoy my other interests and spending time with my family, but I'm also drawn to reading, playing, building in code. There's endless fascination there for me.
I do have some pity for people for whom it's "just a job." To spend approximately 1/2 your adult waking life doing something that merely enables you to pursue other interests and pay the bills. Poor saps. I suppose not everyone can get work doing something they find compellingly fascinating, but I wish everyone could.