I-5 is paradise, i dont know what youre talking about.. you can be bumper to bumper from Olympia to Everett on a good day.
Vashon on the other hand is beautiful... not yet the Condo/Cooper Mini clusterfuck that Bainbridge has become. As of now you can walk on a ferry downtown or in west seattle and be a 4 mile bus ride from K2 in a half hour... as opposed to sitting in your car ... indefinitely. I'm a little let down... but what are you gonna do, i imagine K2 would like to succeed and the jungle of warehouses in Sodo have to be a lot cheaper to work from than from the islands.