The Worst “Heat Map” I Have Ever Seen

I am no fan of geographic heatmaps, especially those that are really just density maps or poorly interpolated surfaces.  To me the term “heatmap” is just an overused marketing term.  So, when I came across this “heatmap” today I had to laugh:

Rental Heatmap” from

And here is a screen grab (in case they edit their page!).

There is no heatmap here, at all (unless I am totally using this page incorrectly, which isn’t out of the realm of possibility).  No doubt, it’s a slick web-map application that really aids the story, but let’s call a spade a spade.

Side note:  Is the term heat map so popular because choropleth doesn’t sound cool?