There is a not starving (though severely bankrupt) very small peninsula country on the atlantic that has not legalized, though "decriminalized" ALL drugs to measured success. That country is Portugal, which officially decriminalized all drugs nationwide in 2001. It is a very interesting data point in the argument over drug legalizations. Arguably it is the closest anyone has come to large scale legalization of drugs (interestingly, their case is not limited to just marijuana). More information can be found in this Scientific American article and the Wikipedia article on the drug policies of Portugal:
http://www.scientificamerican.com/article.cfm?id=portugal-dr...http://en.wikipedia.org/wiki/Drug_policy_of_Portugal
Because it's only legal to posses small quantities for personal use (about 10 days). Possession of bigger quantities has remained prohibited by Portuguese law, and criminal penalties are still applied to drug growers, dealers and traffickers. You cannot go into a coffeeshop and buy some weed as you do in netherlands so it doesn't make much sense to go there as a "drug" tourist.
They have, I went to the Gili Islands 2 years ago, no cars and they advertise legal mushroom shakes, also amazing island for diving (not in conjunction however!)