Well because I have twin seven-year-old boys I enjoy the gift giving stuff a great deal. We do both Hanukkah and Christmas so it is a costly though extremely pleasing proposition.
A pet store is a celebration of dogs' existence and an explosion of options. About cats a pet store seems to say 'Here we couldn't think of anything else.' Cats are the Hanukkah of the animal world in this way. They are feted quietly and happily by a minority but there's only so much hoopla applicable to them.
I understand why creative people like dark but American audiences don't like dark. They like story. They do not respond to nervous breakdowns and unhappy episodes that lead nowhere. They like their characters to be a part of the action. They like strength not weakness a chance to work out any dilemma.