A quick check as I just got back from the store
the Potato starch cookies costed $9.99, the Geborachs cookies costed $3.99 each
and in case you were curious, the Quinoa sushi started at $8.50 each
And If I see something obvious;y wrong, you look or if its something questionable you also look. THe common stuff that you know, is something else. Most things I know its like anything else you go to the store enough, you know what to look for.