I think it's pretty transparently clear that even if you hate the drug itself, there have been no obvious disasters in the legalized states. Tax revenue plus no hugely obvious negative effects is a hard argument to deny.
On a broader level, this is exactly what federalism is about - states being able to try things to experiment, without committing the entire country irrevocably.
On a broader level, this is exactly what federalism is about - states being able to try things to experiment, without committing the entire country irrevocably.