I checked with a couple wholesalers and there current prices are only pennies more per box than the price you posted but you don't have to pay tax so it ends up being cheaper. Obviously, no wholesaler can get it to you "right now". I wouldn't go to Walmart if they were handing out $50's.
No one is making you go to WalMart.
Your choice.
Pennies more per box plus shipping does not necessarily equate to local price plus tax.
Your choices are your choices.
Mine are mine.
Dave