Interesting, but the problem with an analysis like this is that the sample size is so tiny. I don’t think you can conclude much from it about the magnitude of drops/increases in the more desirable areas, even though what you see does seem to support what you would expect.
However, I do think it would be great to see more stuff like this, perhaps not so much on a per street basis, but per zip code, school district, or development. That way the numbers are likely to be more significant, and allow one to see trends based on neighborhood desirability.
What we tend to hear instead, things like prices are down X% in Los Angeles County, are averaged over such a broad spectrum that they don’t have much meaning for the individual in a very specific place.