You can get handles of vodka for 11 dollars. You can buy listerine for even cheaper and drink that. People brewing their own beer may be alcoholics but they are doing it for the hobby or to customize the flavor. Real down in the throes of addiction alcoholics are not becoming chemists for their fix with how cheap the mass produced stuff is.

If you want to find people doing that you look for the illegal drugs that haven't had wide spread industries drive down the price, like meth.