20 bucks for 1.75ml of cola seems like pretty bad value.

To be clear, it made about 1.75L of syrup, not cola. I kept the cola syrup jug in a fridge for like a year, and when I wanted a glass of "cola" I'd add about an oz of the syrup concentrate to a glass of carbonated water (which I pre-carbonated with my DrinkMate), and stirred to combine.

I used like half the amount of sugar the cube-cola recipe recommended, because it seemed high. It wasn't Coke sweet but it was still plenty sweet for a soft drink, to my palette.

EDIT: Originally said 1.75 ml, meant to say Liters.