Would not be shocked if it's a combination of people wanting cheap stuff, and I wonder if the addicts themselves contribute. Sugary foods get calories into you and you can usually get them down without effecting the stomach.

If I was in a bad place, I could a good deal on candy being a godsend. Doesn't really spoil either. Wouldn't be shocked if the dopamine rush helps sometimes with "in-between times", though I'm betting it's not gonna do much for withdrawl.

Cheaper. Candy is stolen or originally bought for free with food stamps.