Legalizing drugs is Colorado’s way of letting you out-of-stat-ers know that it doesn’t need your revenues from tourism. It’s been a privilege for you to be allowed to give money to the State and direct more federal funding to it. Outlawing tourist Second Amendment rights (only established “locals” allowed to keep “high capacity” magazines under the new law) is another heads-up to folks in the low class states.
As for the drug fiends, they’ll lose more of their rights, too. The whole advertising campaign for addicts from other states is a trap to outlaw them from ever possessing firearms (restraining orders, known drug problems, mental problems, etc.). The new State laws are only for getting them recorded in databases that will be used in federal offices under federal anti-Second-amendment laws in the near future.
You think legalization will decrease tourism? I'd guess the opposite.