It's pretty simple. Buy if you like the price and don't buy if you don't like the price. If the market will bear $42 a box and he can get it at wally world for half that more power to him. Guessing even at wally prices they are currently less than what they can buy them for wholesale IF they can even get them. Pretty typical mark up on most products that have low margins.
IMO Many small stores are going to be pushed out of the market because they don't rate high enough on the wholesalers list to get good buys or scarce items at all.