I mean this article claims they'd save $320 million. And that's presumably before they sell any cocaine or other products they produce with the leaves. So it seems like it could be workable.
Lol. Take that money I mentioned above, all that military aid. If the Columbian government starts selling cocaine that money will fund the US military invasion of columbia. The US might be on the brink of legalizing weed, but it is a long long way from accepting colombia as an official narco state.