Its true that Red Bull, V, Lift Plus et al are no more than about 10 tablespoons of sugar and some caffeine. But damn they get the brain going. Especially if you cant drink much coffee(like me, makes me sick). Sadly, i love good black coffee. I love a good cup of Russian Caravan tea too.
Up until last week I was drinking 1-2 V's or lift pluses per day. They lack the taurine of RB but retain the other good stuff + gaurana and ginseng and B viatmins!(all of which are in tiny, useless amounts). Taurine btw is a derivative of cystine, my favourite amino acid. Cystine is a great hangover cure.