It's been available in bottles for a long time, just not distributed in the Olympia-Shelton area, which I always found to be weird. Same with their Monkfish.
They bust out the Leviathan Barleywine every once in a while as well, the barrel-aged version was once considered one of the best barleywines in the world, but that was many brewmasters ago.
I think the Reel Ale series of bottles are a good idea for Fish Brewing. The Starfish, 10^2, and Monkfish are all great. I'm definitely looking forward to trying the Swordfish Cascadian Dark Ale soon.