AR15 Quality vs Cost Curve

[cory]

I put this little chart together as a teaching tool. I've grown to respect the insight here and would like y'alls comments on how far off I am and how I could make the chart more precise.

I'm always trying to explain this curve to friends who are looking at getting into AR15 or looking to upgrade. I've about got a good engineer friend talked into building an AR15, so I pulled out excel and went to work on a visual representation.

I'm not always as articulate as I'd like to be, but I can utilize excel with the best of them. haha