Considering that pornography means "the works of prostitution" and that eroticism is one of the expressions of love, for me is simple:
pornography is pure commercial, made just to make money. Erotic art is an expression of our humanity, if money is involved, its not a priority.
Its not really a matter of your personal beliefs or opinion on aesthetics, its a matter of the goal of the creator: if (s)he just wants to make money, (s)he is a whore.
Real photographs, created in camera, 100% organic,
no digital additives and shit