Why drink coke when you can drink coke zero?

I know coke zero is not at all healthy but if someone's a regular drinker of coke why would he/she not drink coke zero instead

It tastes the same but has 0 calories and sugar, 100 times better than normal coke

Same applies for Pepsi

Why drink coke when you can drink coke zero?
Why drink coke when you can drink coke zero?
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