my biggest concern for this will be people wanting one because well...there foxes...and have no idea what their getting into...
im sure even domesticated foxes are still foxes and still have that baser nature and general temperment just essentilaly mor epredictable...
for me i think domesticating forxes is like domesticating cats, sure it can be done and they can live happily with human interaction, but unless they changed the fox temperment along the way to something more dog like, they will always be more like a sight hound or a cat than the average owners dog...
in otherwords, not a cat person? dont like sight hounds? then dont get a fox...