Keep in mind, the pet care industry in the US is Enormous. The amount of money spent every year on pets is more than the amount spent on music, movies and video games combined. Massive.
If you want to know how crazy people are, just consider
Nuticles.
Neuticles are polypropylene balls surgically placed into the scrotum of neutered dogs to give them the appearance of an "un-altered state." It helps them to adjust phychologically to the ego busting trauma of losing their manhood. Over half a million of these have been sold and implanted.
From their website:
(edited to fix spelling)