Yeah, and they're one of the reasons the poor stay poor. Dollar stores are a terrible value.

Walmart made a name for itself with its "rollback" program, where products would appear cheaper than competitors' because the SKU contained one less ounce/gram/unit. Dollar stores takes Walmart's own game to extremes; you buy a quart of watered-down bleach for $2, where buying an entire gallon (4x the volume) of the real thing would cost you $3 at Walmart.

Or, $20 for a 14-pack of Monster drinks at Walmart is a terrible deal when they're "just" $3 (each) at the gas station!

You see the same thing with people buying individual packs of cigarettes instead of an entire carton. The math works against them. They don't understand it.