I'll give the obvious "check beermenus" answer. I bought a bottle earlier in the week for $8.99! Yes, $8.99. Obviously had to have been marked wrong. Seems to be quite a bit of the Tar out there.
I'd say check yer local Binnys. Have seen plenty at various Binnys @ 18.99. Was 15 at the brewery so, yes, 8.99 is marked wrong unless you bought it at the Cantina?
Unfortunately, I didn't find out about it until a few days after the store got it and I got the last one. Believe me, I was ready to clean them out even after I bought a few from the taproom at the rediculous price of $15/bottle