NEW YORK (CNN/Money) - The plump paws, the happy-dance body-wag, the perpetually pleading eyes – such are the charms of a puppy. But some puppies' charms are much more expensive than others.

That's because a lot of factors go into pooch pricing.

Purebreds, for instance, are usually more expensive than mixed breeds. And while no two purebreds are alike, pricing pressures can be similar across breeds. Here are just five factors that will affect the cost of a canine:

Say, I've never seen you in these parts. Puppies from rare breeds, breeds newly recognized by the American Kennel Club or breeds that have small litters can come with a big price tag. Such scarcity or novelty also can increase the wait to get one, which can last at least several months.

Who's your daddy? Pedigree counts for a lot. If your puppy's lineage includes scores of champion studs and females, expect to pay for the privilege of heeding those late-night cries for walks in the rain.

Shakin' what your Mama gave ya. Put pedigree and training together, now you're talking serious money. Take the much beloved Labrador retriever. A typical puppy without a fancy-pants pedigree might cost up to $800, depending on the region -- dogs in general tend to cost more on the East and West Coasts. A pup with serious lineage, however, might cost $1,200.

A puppy whose parents recently have won titles in field trials (a competitive sport for retrievers, champions of which are akin to champion racehorses) might cost $3,500. A more grown-up Lab who has already been trained to run field trials could go for $10,000.

In fact, it's not unheard of for a highly decorated field-trial champion to fetch $100,000 or more, said Rick Van Bergen, a Lab breeder who is on the board of the publication "Retriever Field Trial News."

Going for "Best in Show," are we? Breeders may have "show-quality" dogs and "pet-quality" dogs. The former often cost more and are identified as show-worthy because of several features, including temperament, build and lineage.

But responsible breeders are unlikely to sell their "show quality" pups unless they've assessed the buyer is serious and capable of pursuing that dog's potential. So clout-seekers, bark up another tree.

Well, if she's gotta have it, then so do I. Being the "It" dog of the moment lends to a pop in price for a breed. When a dog is featured in a popular movie or commercial or wins "Best in Show" at the annual Westminster Kennel Club Dog Show, its breed can be in high demand for awhile.

You may think breeders of such dogs would welcome the publicity. Not necessarily. Ethical breeders who are serious about the well-being of their favorite dog often fear unscrupulous breeders and "puppy mills" will try to mass produce the dog, selling inbred or less-than-purebred varieties at premium prices and making health problems for the breed more pronounced.

In fact, that's why dog experts recommend that those in the market for purebred dogs comparison shop only among responsible, experienced breeders like those listed on the Web sites of National Breed Clubs.

Good breeders not only offer tender loving care to a puppy for up to 12 weeks, but make sure the dog is properly vaccinated and carefully screen potential buyers to make sure they can provide a good home and a lifestyle suitable to the breed's nature. And, importantly, good breeders make themselves available to new owners in case a puppy experiences any problems.