Seriously, the serial killer thing is a good point, I think that Gacy had connections here as well. Another thing, I think, of note about Seattle is it seems to get everything disproportionate to it's size. Despite being a relatively small city you'll rarely see a book signing or concert tour that misses us. We have, literally, some of the best chefs in the world (Specifically Tom Douglas and Mike McCrary although there are several other major ones). Several major musicians had their start here, Bruce Lee lived and worked here. Most likely all of this would have some connection to the Nevernever, like this is a hotly contested area, or the seat of a fairy metropolis or something of the like.
Also, if you don't live around here, you should understand that pretty much nobody sees Seattle as ending at the city limits. So far as locals are concerned Redmond, Bellevue, Bothell, Kirkland etc are considered to be Seattle when speaking in general terms.