Great article in Business Week about the current state of the pet economy. According to the article, "Americans spend an astonishing $41 billion a year on their furry friends."
Other great stats and trends are also featured in this article, including the booming business of buying fake testicles for your dog to replace the ones removed during neutering. Yup, I said it, fake testicles - and they get implanted back into the dog.
http://www.businessweek.com/magazine/content/07_32/b4045001.htm/,