Good point v12. I haven't actually been down to the new Seattle service center so I shouldn't assume it's a great spot despite it's proximity to the 90/5 intersection. I don't go down to that area much myself either. When I do it's usually for one of these events.
I can't remember where but I remember reading someone propose it be installed at the 405/90 interchange. Unfortunately, there's really no easy access on or off either highway there.
It it will be interesting to see where they end up putting this Seattle Supercharger if we get one at all.