good story. I've never had any luck whatsoever with my local wal-mart's fish aisle, other than a couple of ghost shrimp now and then (which more often than not generated a disgusted recoil by whoever was handling the tanks; not nearly as good as the ropefish story).
Up until about a year ago, though, the guy they had running that corner of the store managed to do pretty well with what he had to work with; he had little say on the variety or quality of the stock he recieved, but the tanks were always well maintained, and he gave the beginners better advice ("no, this betta needs at least two gallons, you can't keep him in that cup", etc) than expected.
Since he's disappeared, however, the whole thing's back to what you'd expect, sadly, including the occasional dyed tetra (boo! hiss!)