My first post, so bear with me here... I am in the midst of deciding which macbook I am going to buy. I am comparing MBA13", MBP13", MBPr13" and MBP15" in various configurations. Now to the question: I have included a geekbench score in my computer analysis, and combining geekbench scores with computer price to create a metric. For example, MBA with 8GB RAM, 2.0 Dual Core i7 processor has an average geekbench score of 7157 and price tag of $1369, and so I have given it a "$ per geekbench" point value of .228. (i.e. It costs 22.8 cents per point on the geekbench scoring at this price point) In contrast, a MBP15" with 2.3 Quad Core i7 and 8GB RAM gets a "$ per geekbench point" value of .175 (i.e. it costs 17.5 cents per geekbench point.) Seeing as how there are some significant similarities with the computers (specifically screen resolution, RAM), do people find geekbench scores reliable and valid enough to make this kind of comparison? Looking at these numbers, It is worth spending 2000 dollars on a MBP15" over the MBA because the power you get for the money is "cheaper" for the MBP than it is for the Air. Any comments and suggestions are appreciated. Side note -- I relate this question to shopping at supermarkets, and looking at price per ounce for canned goods or cereal.... the question is, does the score mean enough to base a decision on it.