Recent shopping at Costco; a new high for groceries for us: $700.PROSAttractive, large, well-lit stores; wide aisles; good, deep inventory; large, wide, organic food selections -- even organic dog treats! Descriptions and prices of items are clear and easy to locate.Of course, excellent prices are the main reason for Costco's success.CONSManipulation and insults to shoppers: No descriptive signs anywhere in the store, as to where items, or categories of goods, are located. Worse, no signs on any aisles, so one of forced to go up-and-down each aisle, or risk missing an item on one's shopping list.I don't know of any other retailer that treats their customers like that.I constantly see parents with children forced to go through rows of cookies, ice creams, pizzas, etc., etc. That makes it very difficult for children not to see / ask for generally unhealthy items.