[quoteif you're snorting both drugs as means of ingestion, methamphetamine should give you at least 4x that time before the excess dopamine



And there's the answer to Karma Fist's question - dopamine. Meth increases dopamine, which is the neurotransmitter that makes people horny. If you're in the business of fucking for a living, then doing a cheap drug that makes you want to fuck is ideal. More dopamine lowers inhibitions and negatively affects judgment (an excess of it is present in schizophrenics), making that cumfart cocktail look absolutely scrumptious. Plus, meth makes you skinny.

These are all short-term benefits, but we all know that the porn whore who thinks long-term is a rarity.