Because once you build up a light tolerance they basically become the greatest energy pills in the world that also happen to give you a nice body buzz and enhance everything else you do (drinking, smoking, smoking weed, etc).
They're horribly, horribly addictive for good reason and they've put at least half a million Americans in the ground in the past 20 years.
Don't get hooked. It's good that you don't like them.
