Speak for yourself, I love the taste of taurine. Plus there's something strangely satisfying about the taste of a standard diet Red Bull. There's no attempt at natural flavoring there: you can rightly tell God had no part in making it.

But besides that, energy drinks are an easy consistent way of getting exact amounts of caffeine. I drink pre-workout before gym days for that exact reason since it's a lot easy to get 200mg of caffine via one cold 10oz drink than trying to brew and chug two hot coffees at 8am.

Plus occasionally there's non caffeinated benefits; the Monster Rehab line really does seem to help in the morning after a night of hard drinking.