Is there any possibility that the mother isn't purebred?
If not, some recessives could be showing up in your pup.
I do believe I would ask her to accept less money for the pup but I am happy to hear that you plan to provide it a good and loving home
As long as you are happy with your pup's size and disposition, the "look" is a vanity issue. I just hate to see someone take advantage of you by overcharging.
Of course, I am also a bit of a fanatic, I would like to see all mixed breed and most purebred dogs neutered. There are just too many abused and unwanted dogs and cats already.
I actually feel guilty that I purchased my dogs rather than rescuing but then when I tried to rescue a Maltese, I was put on a list, and I wasn't that patient