Twenty goddamn dollars a can. Besides the OMG CAPS LOCK, the dramatic list of 'reviews' and the fact the the poster calls the batch "magical," my favorite part of this review is how obvious it is that the poster bought the stock at a packie minutes before posting the classified (via the black bodega bag).
For the interested, I'd recommend skipping Craigslist for now, as you can still find it at a bunch of bodegas in the Mission (and likely other neighborhoods). One store on Capp is selling them for $4/can because "that's what people will pay." Another on Folsom is charging $3.25. However, another on Mission refused to sell his backstock, even after we offered him $8/can, because he was terrified the city would shut down the store if he sold off his stock, so maybe you better act fast.