It's already out of stock, but try THIS LINK. These toys seem to be dropping in price when you add them to your cart.
VTech Sing and Discover Story Piano is just $5.49. It's priced at $10.99 on the item page, but when you add it to your cart and check out, you'll see a discount of $5.50, making it $5.49!
Please note this is an Amazon deal, so the price may change at any time.