Checkout 1.0 is released

Madebysofa's point of sale software Checkout has reached it's official 1.0 release and is immediately available to purchase for the price of $430. When I first saw this I was a little shocked since most small Mac application these days have ran around $40-$50. But thinking about it, this is supposed to run your business so perhaps it's being pushed a large commercial product than I originally thought. Checkout aims to make managing product sales and inventory simple and easy, which from the screen shots & tiniest bit of looking through the demo, it seems very Mac-link and user-friendly. Checkout from what I know has zero competition in this market, since QuickBooks Retail Edition is Windows only, but there may be some other POS software I am not familiar with... what does Apple use in their stores? I have not tested this product because I have nothing to really sell or any sort of retail business established, but would like to hear from other users what they think.