my opinion on keeping them as pets is that only those with a lot of experience keeping dogs, namely dominant breeds and northern breeds) should attempt it. this is because most wolf dogs (dog and wolf same species, so mixed breed, not hybrid) are not easily trained, even after being trained they only obey if they feel like it, they do not respond well at all to negative reinforcement such as pinch, choker, or e-collars. they cannot usually be trusted off leash. most can and will jump a fence, if they cant they will find another way out. very few are good house pets, many never fully learn to go to the bathroom outside. many of them will chew anything and everything. because most of them have enormous prey drive, meaning if a stranger, child or another animal moves in a way that resembles something a deer, elk, rabbit, etc would do, they will attack, they usually will release the attack as soon as the realize it isnt prey, but damage could already be done. most are too timid to ever be introduced to strangers. and they are very pack oriented, and many of them will regulary challenge your leadership.
I do not think they should be bred. there are very few (none that I know of, but one or 2 are surely out there) responsible breeders. most breeders will just breed anything, to produce puppies, and they will have more than one litter per year from the same female, and often on her first heat. most dont properly screen potential buyers (if they screen them at all) to see if the person truly understands what they can expect from the animal as it matures. they dont check to see if you have the proper enclosure. they dont check to see if you have done any research. many breeders have been caught in the act of telling a potential buyer one of many things such as "that is the rare russian something wolf, they have been extinct in the wild for 50 years. if anyone like a game agent tells you they dont exist its just because they are so rare no one has ever heard of them" first off, an animal that rare would be in a zoo or preserve, not a wolf dog kennel. second, in that case it was a german shepherd yellow lab cross and the dam didnt have any wolf in her either. another thing they say is: breeder "what percentage of wolf are you looking for?"...buyer "80% wolf"...breeder "okay, good thats what I have right now." next buyer "25% wolf"...breeder (referring to same litter) "good thats what I have right now". percentage doesnt mean anything. a 1/4 wolf 3/4 malamute could look pure malamute and have the temperment of pure wolf. works the other way as well. what matters in wolf content is how recently was PURE wolf introduced. 1/4 wolf and 3/4 malamute ,or whatever breed, means that at best one parent was half wolf, one parent was pure wolf. it could mean one was 1/8 wolf, the other was also 1/8 wolf etc. and even if its been 3 generations since a pure wolf was bred in, the pups could still look pure wolf and act pure dog, or look pure dog and act pure wolf, or anywhere in between.
if you have a lot of experience and feel you are up to the challenge of a wolf dog...go for it. but please get one from a wolf dog rescue. the naimals in rescue are in foster homes around the country. these foster parents love them like their own and they have very extensive screening for potential adopters.
http://www.liquinet.com/wolfdogadoption/