I would much rather incentivize non-plastic alternative packaging. Consumers should have better options for metal cans, glass bottles, etc for mainstream goods, as those materials are far more effective targets for recycling. But they're no where near competitive with plastic because the production cost doesn't account for the total lifecycle.
Why glass? Glass is quite recyclable but requires lots of energy to recycle. As soda bottles and milk bottles they might last 20 uses. Glass is also much heavier requiring more energy to transport.
Of course it does take energy to get the recyclables to these places. Curious — are trains no longer efficient?