I have to say I like the merles too, and not ALL merle breeders are bad breeders, I know of some who are very carefull about their breeding, and all are tested etc.
The people I cant stand are those advertising non registered pups stating theyre rare blues, or chocolates, and asking silly money.
Even seen one advert saying "rare all black chihuahua" and asking over a grand for non-registered.
I would now never buy a chihuahua from someone I dont know, as they will tell you all kinds of bull if you dont know them. and I feel if you take time to REALLY get to know the breeder, and find the good breeders, it is worth years and years of waiting to know your going to get a good chi, and not just be told what the breeder THINKS you want to hear.
I dont care if it takes me ten years to find my show chihuahua, I am prepared to wait and only get from a breeder I have got to know over time.