Earlier quoted context omitted.
Then buy generic. This is one way to fight inflation. Coke will get the message very quickly if their sales start coming down.
If you drink neither and choose water, then it'll really come down. Bonus: you'll feel better
Something like Spindrift is a partial substitute.
A real substitute is Izze. Less sugar, but still sugary. Tastes awesome - better than Coke.
http://blog.nawaz.org/posts/2021/Dec/taming-my-soda-addictio...