So true:

> People who are really into staying up all night dancing to techno music aren't buying expensive alcoholic drinks, they're buying cheap water to stay hydrated. Many (though by no means all) take drugs, but generally that means one dose of a drug like MDMA at the beginning of the evening.

There is very little money for clubs to make from techno ravers, as they're not typically the ones downing alcohol; I highly doubt one can rave to music till sunrise while continually taking in alcohol at the rate at which your typical alcohol going club-goers would.