[Blarg]

Get what you like and f*ck what anybody thinks about it. You are under no obligation to rescue shelter animals.

Your obligation, when it come to breeders, is to make sure you're not helping her sell off genetically screwed up animals, especially if they are going to be sold for breeding and not just as pet quality(these are fixed/spayed). You don't want to be furthering inbreeding or poor animal health. At this, some breeders are more ethical than others.