I go to Costco. Walmart is a depressing place; people there do not like working there.
There are some great deals at Costco, the quality is good, the store is clean and their shoppers actually change their children’s diapers on a regular basis.
The employees at my Walmart are always talking and complaining to each other while they stock the shelves, but at least they are friendly and helpful when I interrupt to ask for help. I go to Dollar Store as much as possible.
Can you blame them? I'd kill myself if that was the only job available.