Drug courts are not definitively more expensive.
http://www.nadcp.org/sites/default/f...web%5B1%5D.pdf
"Moreover,although up-front costs fordrug courts were generallyhigher than for probation,drug courts were found tobe more cost-effective inthe long run because theyavoided law enforcementefforts, judicial case-processing, and victimizationresulting from future criminal activity."
"In the ensuing years, researchers have continuedto uncover definitive evidence forboth the efficacy and cost-effectiveness ofdrug courts."
"In line with their effects on crime rates, drugcourts have continued to prove cost-effective"
I could do this with a dozen more papers. Something tells me it would be an entirely fruitless effort.