The obvious reason to check into a substance abuse rehabilitation center is to get intensive, around the clock assistance with giving up drugs. There are several other benefits with residential rehab as opposed to outpatient treatment or meetings only.
Out with the old: Convicts are told that when they are released, they need to change their playground and change their playmates. The same holds true for drug abuse, and by checking into a residential facility, you are removing yourself from your stomping grounds and drug buddies. Out of sight out of mind is very true in the drug world. Once you go away, you will be forgotten and you will be free to get help without being bothered by those who are not ready for you to be sober.
Taking a break: Right now, there probably isn't a whole lot of peace and tranquility in your life. Whether you are constantly arguing with loved ones, avoiding your debts to a dealer, or living in a chaotic environment, checking into a residential rehab will give you some quiet time at least for a while. You will have meetings, counseling and activities to attend, but compared to what your life has become, rehab will be a very peaceful change.
Showing That You Mean It: It's not that you owe anybody other than yourself proof of your commitment to get clean, but checking into a residential facility is pretty convincing evidence that you are serious. If you have made a lot of promises to stop using drugs or you’ve half-heartedly attended meetings, your family members may be getting numb to your stories. A willingness to go the residential route can show them you really are ready to get well.