following up on queerbot's post, if you compared the two drugs head to head as recreational stimulants, methamphetamine's simply better.
why?
1) it's far less cardiotoxic than cocaine. heart attacks are a buzzkill when you're partying so what you're looking for is something that's going to stimulate your central nervous system a lot and peripheral nervous system a little. neither are great for your heart, but cocaine's pretty shitty for it.
2) it's unpleasant to require constant adjustments of those monoamine levels you're doing the drugs for in the first place-meaning cocaine's going to make you start feeling lousy on an hourly basis unless you do more. if you're snorting both drugs as means of ingestion, methamphetamine should give you at least 4x that time before the excess dopamine, 5ht, norep. that feel good desert you. having to go to a bar bathroom to do a bump every half hour is massively-inconvenient.
conclusion: stimulants are lousy for you and either done to excess is going to leave your brain unhappy and possibly short a few overworked components on a permanent basis. sleep and nutrition are big deals and not very compatible with either. cocaine sucks for your heart and you need to spend a lot of effort making sure you stay high. meth will probably afford you a few more years in the process of destroying your life if you're serious about never sleeping.
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"She has no waist, no arse...an interesting face...but all we are really worshipping is two bags of silicone"
Martin Amis "honoring" katie price with a character bearing some of her traits