Sort of. But the "Average Mac selling price (4q average)" is an abysmal chart. The first-glance takeaway is, "Wow! The average Mac price has almost quadrupled recently!" when in reality it has increased about $150, or about 12% from two years ago.
I don't agree: this is one chart where starting the Y axis at 0 would be more misleading, not less.
By way of analogy, consider a chart of somebody's body temperature in Fahrenheit: if that fluctuates +/- 5 degrees it's a cause of significant concern, +/- 10 degrees is a medical emergency. But all of those changes would look small and insignificant on a 0-based chart.
It's the same situation here. The ASP of a Mac is never going to be even close to 0, so the Y-axis should span only the range of realistic values so we can really see how significant the recent upswing was in context.
