I don't know why the person who said that thought so. But I can understand why they and everyone else noticed the money boa so easily. It was hard not to, being six feet long and made up of larger-than-real $100 bills made to look fluffy.
It arrives in the package flat. Each bill must be fluffed out. It took several weeks for me to do get it fluffed out. I'd ordered it in June last year to get a jump on it. Every year this site and other costume sites say the money boa is sold out after the Halloween season and early in the year. It must be popular, though no one who saw mine claimed to never have seen one before.