INTJ drinkers like their drinks scientifically formulated!
Buying Red Bull is a deliberated choice because almost any other energy drink is cheaper, therefore buyers of the drink are more likely to have though out their action beforehand- it just seems very INTJ!
But it's nasty! Then again, so are all energy drinks.
And how do you know it's not just loyalty to a specific brand? (didn't Red Bull start the current energy drink trend?)
-Carefully taking sips from the Fire Hose of Knowledge