When people think of High Maintence, they think of the material aspect of it. I think of myself as HM because I have a certain way I like to present myself while I am in public. I really believe it is a way of life for others.
When might consider themselves as HM, you might be classified as a snob or other names that I care not to mention. You have to think about yourself in high esteem because you do not, who else will.