I know they're trying to make it fun and exciting for the kids, but to tell you the truth, this is part of what's wrong with our society today IMO. The idea that kids need lots of fancy bells and whistles to entertain them and for them to behave. Also (and this is the last part of my rant, I promise!), while I believe dental hygiene is very important, I don't like how it can be really off-balance. The dental hygienist was instructing me in what snacks I should feed my kids ('cause, you know, after five years at this I must not be able to figure it out) and informed me that even if something's healthy, if it can get caught in their teeth, they shouldn't eat it. That I should be giving them cookies for a snack. Ummmmm...sorry, I'll take my chances with healthier things. See what I mean? It's like all that matters are your teeth. I think my kids' energy levels and nutrition matter too. Quite frankly, those things matter a little more to me if I'm honest.
But don't worry--I didn't tell the dentist that. :)