Demand for Pet Rats?

http://news.yahoo.com/s/nm/20071028/od_uk_nm/oukoe_uk_rats

I'm a bit weary about this new "demand," for the same reason that is mentioned in the article. ..."as with demand for pet puppies and kittens that can fade once the cute factor diminishes with age..." I remain hopeful that this does not happen with pet rats and they find forever homes once they go home with someone.