1) Those in prison for drug use need not be locked up. The drug war is long lost. Get over it. Waste of time and money. Those who use will use, those that know better wont.
2) WIth the difficulty in finding and keeping prison guards, plus the burnout rate of those people, plus the taxpayers whining and crying that the prison guards make too much money(another lie they cannot prove), is this not a way to save money? Less prison guards = less taxes (for those that whine and cry about paying taxes).