I think it's better to front load it. At the back end people have the option to dispose of things improperly.

Also, I don't think we include enough externalities in the price if things.

Having an index could inform people when making purchasing choices.

It's one thing to charge to move the waste to a landfill, it's another to price in the long term (difficult to quantify) environmental costs (manufacturing pollution, land & water contamination, depletion of resources, etc). I'd be curious to see how much the disposal costs reflect total costs and whether some areas are subsidized.