"so that I don't have to pay these druggies' rehab costs"
a lot of pot rehabs are forced into it, having to choose between jail or rehab...so make it legal and you'll see a drop in rehab, at least, for pot...
Once again, the draw of legalization is decreasing government spending. Unless I can be certain that government spending will actually drop as a result of legalization, I have zero reason to support it. Therefore, get government out of the health care business first.