700' vs 1200' Class E Airspace
Most of the Sectional charts have a lot of ink on them, showing where the Class E airspace changes from 1200' to 700' AGL.
From a practical day-to-day user's viewpoint, why is that info even on the chart? I've yet to find anyone that cares or uses it. Maybe crop-dusters or some other niche users do?
Also, just curious what the altitudes were set at 700' and 1200'. Why not just call it all 1000', and be done with it?
It seems to make a fine point of changing the airspace when no one cares. What am I missing?