Yes I agree with STD, it is a completely irrational theory to suppose that the government won't tax it if/when it is legalized. Of course smart people like you and I are going to grow, but for those who don't have the time/patience/skill to grow there will be weed shops and the weed that they grow/sell will most definetely be taxed. The government controls everything, I wouldnt be suprised if weed is MORE expensive when it's legalized.