As prices have gone up, a few other things have changed.
Drug dealers and P manufacturers have established a firm footing in regions like Northland. Northland has always had organised crime of some sort, based around cannabis and stolen goods, and involving gangs. But P is a business where the stakes and risks are high, but the profit margins are massive. Unless, of course, it all goes wrong and police stumble across your half-tonne of methamphetamine on a Far North beach.
P provides a business model and product distribution network for other commodities such as cigarettes. Easy money if you can get your hands on the product and get rid of it within your drug retail and manufacturing business.
Right now, it seems that someone is on a shopping spree for cigarettes and tobacco.
And it's unlikely to be one-off chancers stocking up for their private collection.