The Biggest Festivals In America, by US State

Thanks to Promotions Now, we now have a visual map outlining the zonal popularity of the biggest music festivals in the US.  The festivals were selected depending on various factors such as popularity of line-up acts, number of attendants, media coverage, and the general buzz surrounding the festival.
Some are very obvious, like Coachella for California and The Governor’s Ball for New York, etc., but some are less obvious.
What’s special about this map is it