I think that the relative price of the base morphs (pied, pastel, hypo, albino, etc) will come down as the supply of them rises. Prices come down when supply is increased, the number of alternatives increase, and more perfect information about whats available is accessible(the internet really helps out there).
I think that the future in big $$ morphs are those 1 in 16 chance combo morphs, such as a caramel glow, orange ghost, etc. Keep in mind that BP morphs have only been around for 15 years or so. Indeed, what we see now is only the beginning.