I was in the little Spec's on Holcombe near the TMC yesterday and they had some of the Sisyphus, Avery's The Beast gran cru (16.4% abv!), and Dogfish Head 120 Minute. I grabbed one each of the first two and need to go back for the 120 Minute, which was over $9 for a 12-oz bottle. The Avery beer was $7 for the same size and I just couldn't justify dropping nearly $20 for two beers.
Tried the Sisyphus tonight; it was okay but a little too citrusy for my taste. A big dose of American hops is fun from time to time but I prefer English hops in bigger beers. At least it wasn't soured, though.