Tim,
I just bought new toothbrushes for my munchkins. I paid about $5 each, for the generic electric Crest kind. Then add another $2 or so for each tube of toothpaste, and $3 for a bottle of Act, and that totals about $7.50 per child - a small price to pay when compared to the rising cost of good dental care!
If I could have bought one machine that would dispense toothpaste and Act in the correct amount, and also could be used for brushing, I would be willing to pay about $10 each. I'd be willing to go the extra few bucks just for the sake of the money I'd save on buying more toothpaste every week since my kids play with it more than they brush with it. But I watch my pennies, so maybe that's a little low for your project. Usually I find, when shopping, that if something is
under $10 (even if that means $9.95), I have no problem putting it in my cart. As soon as it gets above $10, I have to actually think about it, and decide if it is worth it.
Please keep in mind that this is when I hit the local Wal-Mart, and does not apply at Best Buy or Circuit City, or ANY bookstore. But $10 seems to be my mental hurdle. If you can keep your gadget under $10, it would fit into my shopping cart.
