Agree, but can't we just include both average _and_ mean? And maybe min/max while we're at it? Seems like that could give a much clearer picture (without even needing a graph!?)

Min & max are also meaningless for most distributions, so probably you should instead look at P1 and P99 or something, and all of a sudden you're now talking about 5 numbers when all you wanted was a quick point.