Is this legal? Reselling snacks from Costco

Is this legal? Reselling snacks from Costco WE MADE SIX FIGURES LAST YEAR RESLLING SNACKS FROM WHENEVER I TELL PEOPLE WE MAINLY SHOP AT COSTCO TO GET OUR CANDY FOR OUR VENDING MACHINES COMMENTS ARE FILLED WITH PEOPLE TELLING ME THIS IS ILLEGAL I'M HERE TO TELL YOU IT IS NOT EVERY MONTH WE SPEND OVER $10,000 JUST ON SNACKS AT COSTCO THEN WE MARK THOSE PRODUCTS UP 100% AND STOCK THEM IN OUR VENDING MACHINES ALL OF THIS IS TAX EXEMPT FOR BUSINESS OWNERS BY THE WAY AND I BREAK IT ALL DOWN IN MY VENDING MACHINE GUIDE BUT HERE ARE THE BEST SELLING PRODUCTS WE BUY AT COSTCO EVERY SINGLE WEEK VARIETY PACK VARIETY PACK OF GATORADE PRETTY MUCH SELLS AT EVERY SINGLE LOCATION COST ABOUT 60 CENTS AND WE SELL THIS FOR TWO 25 IN OUR VENDING MACHINES THIS HIGHER MARKUP MAKES UP FOR OTHER PRODUCTS THAT HAVE A BAD PROFIT MARGIN ANY ENERGY DRINK YOU CHOOSE IS GONNA SELL BUT SPECIFICALLY THE WHITE MONSTER THIS ONE SELLS OUT PRETTY MUCH WEEKLY IN ALL OF OUR VENDING MACHINES A LOT OF PEOPLE THINK THE OG MONSTER SELLS THE BEST BUT THAT'S ACTUALLY THE WORST FOR US THEN WE HAVE THE NERDS CLUSTERS THIS IS BY FAR THE MOST EXPENSIVE CANDY IT IS ALSO THE BEST SELLING CANDY THESE ARE A DOLLAR 50 EACH AT COSTCO AND WE SELL THEM FOR 3 25 IN OUR VENDING MACHINES WE HAVE A RULE OF THUMB FOR PRODUCT SELECTION THAT IF WE CAN'T MARK IT UP 100% WE JUST WON'T SELL IT IT'S JUST THE ONLY THING THAT MAKES SENSE IN ORDER TO PROFIT