I just went to the store that I purchased my last box of Borax and it was nowhere to be found.
I asked a woman who was stocking the cleaning aisle where I purchased it previously and her response was.

"What's Borax? What do you use if for?"

To paraphrase, I said: "It's good for everything from cleaning to gardening to health but then I can see why you wouldn't carry it anymore because it does what most of these other products claim for less than half the price"