Most modern rehab programs are: Pay them $20,000 to dry out for a month, and then they tell you to go to AA.
We put my father though a month treatment 30 years ago. The money was well spent. They did more than just detox him. It wasn't till after being fully detoxed that he started the treatment program. The treatment center hosted several AA meatings each week. They did a full physical and lab tests, and discovered albumen in his urine indicating that he needed to have his kidney functions monitored. If he hadn't gone into treatment and started going to AA meetings, I doubt he would have lived more than another 5-10 years. He ended up living almost 27 more years.