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Heroin is very addictive, Ketamine is not.

Ketamine certainly is addictive. I reckon the recreational value of K is seriously weakened by this factor. There are better things to trip on, that don't risk compulsive over consumption.

Tolerance builds quickly and a strong mental addiction develops quickly. Having to take a shit ton constantly means you're pissing brown within a few months and cessation means withdrawals (nothing even close to heroin, but still there).

Source: my friend with a ketamine addiction.

Self control goes a long way. Particularly for something that's not physically addictive.

That it does, but you cannot dismiss the addictive qualities of ketamine with such a statement, because it is an addictive drug. What part of tolerance build up and withdrawals makes you think it isn't physically addictive? Both are physical documented phenomena.

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