I bought a great book!

I just got a new book I've been wanting to read it was the third book in the L.A. Candy series from Lauren Comrad. It was a great book of which I read in a day and a half. It was great because towards the end you think you know how its going to work out but you were completely wrong. There were sometimes that if you didnt pay enough attention to who spoke first you would have a hard time following, but anyway that is not what I want to talk about. I pre-ordered this book online like 2 months ago and after I got it in the mail I get this email saying:

Greetings from Amazon.com.

You saved $1.80 with Amazon.com's Pre-order Price Guarantee!

The price of the item(s) decreased after you ordered them, and we gave you the lowest price.

The following title(s) decreased in price:

Sugar and Spice: An L.A. Candy Novel
              Price on order date: $10.79
        Price charged at shipping: $9.71
Lowest price before release date: $8.99
            Amount to be refunded: $0.72
                        Quantity: 1
                    Total Savings: $1.80         

which I find good because Im getting a refund but the thing is 72 cents? I mean it almost makes the refund pointless I just find it hysterical for some reason I guess because it's not really much of a difference. But immagine I had preordered a TV or something what would the refund be then with the same percentage rate.
So I did a little math. If I bought a TV for 2,000$ and it was reduced by the same percent I would get refunded an ammount of $148.30 that is if I am calculating from what I was charged at the begining which was $9.71. After I do that I realize that maybe 72 cents is comparitively a better deal :)

TTFN