i can comment on the price where its legal.
shwag is really cheap and grown everywhere. It comes to about $US 5 to 10 for an ounce. when its that cheap its practically free.
in these places where its free and legal, people smoke a lot less than in the US where its expensive and illegal. funny how that works. Think of it like alcohol, you don't want to drink 4 times a day because you will never get anything done in life. Same, you don't want to smoke 4 times a day (which comes to an ounce per month) because you will be a looser who gets nothing done in life.
if you want hydro it costs alot more. the main cost is the cost of electricity used to power the lighting.
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