Have i discovered the "perfect" soft drink combination?

Wife and i love diet caffeine-free Coca Cola. it stays bubbly in the can for a long time and has a great taste. its rare to find this soft drink in a restaurant or convenience store on tap, so one day at a Cracker Barrel Restaurant, i asked for a “mixed drink”. half diet Coke and half regular Coke in the same glass. soft drink history was made that day! what a great taste and the best of two worlds together! i figured this out, so why hasn’t Coca Cola and Pepsi made the same discovery? ZERO Coke is okay, but not quite there. would you buy this new soft drink, if Coca Cola produced it? it could be called Coke Combo.