V.B.
Most stuff like that I try to ignore. Everything in commercials looks so much more fun than in real life. My daughter though they looked great, too. I said, "they are having fun in the commercial, but all they do is the eyes bug out, that's it... do you think you'd be as giggling happy as those kids in the commercial just because you did that? How many times would you do that before you were tired of it?" (she is a little older, lol, I think she was 10 1/2 or 11 at the time)...
We saw some at the end of the season last year in a store, and she picked them up and looked at them and started laughing... at herself for having thought they were so cool. She had never seen them in person, just on TV.
I vote that most of the stuff that shows the kids having GINORMOUS amounts of fun with something simple is not worth it. Those slide things? A piece of cardboard will suffice for the amount of time it takes them to either get hurt or get bored with it.
Now... a pillow pet. Those aren't advertised as "fun" they are a snuggly emotion thing. And they are worth it if you have a kid that is attached to stuffed animals and such.