hehehe, indeed! But as you said, it's all individual. I know some 4th and 5th Dans that I'm pretty sure I could kick around the dojang all day. I think it's all about how you regard your training in the first place and what your goals are. Personally I look at some of the guys I've been lucky enough to train with and just use them as inspiration, I know that I'm not going to be as good as them, but if I've got a goal to aim for I'm hopefully going to get someway close to achieving it.