The soft drink bottlers switched because the price of sugar in the United States is over twice as high as in the rest of the world, thanks to federal price supports for Florida cane growers and Minnesota beet growers. That's why Life Savers are now made in Canada, incidentally - the company literally moved the plant a few dozen miles from Michigan, because across the border the main ingredient was vastly cheaper.
So our modern, nasty, excessive-calorie-laden corn syrup Coke is the result of government agriculture subsidies. Quite a shame.
But: if you want real sugar cola, check out Real Soda where they sell Real Soda in Real Bottles. Anything you want, in actual glass bottles - imported Mexican Coca-Cola, real sugar Dr Pepper, Cheerwine, Nehi, you name it. I've grown to love Moxie. (No, I don't work for Real Soda - I just love their products).
Is there any danger of Montezuma's Revenge drinking soda made with Mexican water?