The wife and I have looked at these on the web before, but haven't made the jump yet mainly because the things are so darned expensive. $60-$90 is a lot for something that may not live up to the billing.
I think the ones that piqued her interest the most were the "juicer" style ones. I can manage some nifty tricks, but I never have figured out how to get Mr Happy to spin like a top, so that could be a new sensation for her.
Anyone out there in TFP land tried one of that model and have any information to report?