A lot of people refer to Whole Foods as a grocery stock while not understanding that it shouldn't be thought of as just another grocery stock any more than its consumers think of it as just another grocery store. A lot of predictions of doom have come and gone without any basis that I could discern other than that misperception.
People were paying $80 bucks a share for Cisco because they thought that the entire economy was being replaced with on on the internet. They just assumed that while all the other players were battling it out for share, Cisco was going to keep raking in the cash building the entire infrastructure from the ground up. The stock crashed when the fundamental underlying assumption didn't pan out and overnight it wasn't the sure-fire bet on the house.
Whole Foods, on the other hand has just kept demonstrating that they accomplish everything they say they will. They make profits, they expand, the profits expand, they make the supply arrangements that they can leverage with their larger market share, and expand some more. Looking at the big picture, I just don't see the flash in the pan. I'm no financial wizard, so please, by all means, tell me what I'm missing.

http://finance.yahoo.com/q/bc?t=my&s=CSC...