Coke, Pepsi, and Passover
dangoldin.com
dangoldin.com
The reason the big soda brands use HFCS in the US is because it's cheaper (due to corn subsidies). The speciality sodas like Boylan's, etc. compete on quality, not price, so they are able to transfer that cost to the consumer. The consumer with more disposable income wants to justify the extra cost to themselves and peers. "Oh, yeah, this is 'Mexican Coke'. Sure it's more expensive but it has REAL sugar."
Would the average consumer in the midwest be willing to pay more for a 12-pak of Coke if it had real sugar? Maybe, maybe not.
It's actually healthier to do neither of them since they're both pretty terrible for you. But if I ever crave a nice Coke on a hot summer day the one with sugar, out of a glass bottle, feels amazing. Maybe that's all nostalgia though.
Personally, I dunno about flavour. Certainly it could make a difference, as could water hardness, but I've seen people drink something blindfold and not know whether it's 7up or coke.
2) The demand for corn to produce ethanol has started to exceed the demand for corn to produce HCFS. It might turn out very soon that cane sugar is cheaper than corn syrup again. The subject of US sugar import tariffs is also a factor.