Cans are more straightforward to recycle, and have a small positive residual value without subsidies. Bottles do not. It’s also surprisingly easy and cheap to

Cans are more straightforward to recycle, and have a small positive residual value without subsidies. Bottles do not. It’s also surprisingly easy and cheap to make your own sparkling water. If you get a counter top unit, people make CO2 adapters for them that let you use standard 5/20 lb cylinders rather than the way overpriced ones the original vendor has. A standard 20lbs cylinder will last 22x as long as the cylinder the units come with, and don’t cost much more to exchange. A welding supply shop typically has food grade CO2 for roughly $1-3/lb as they also supply all the nearby restaurants. If you want flavors without sugar, bitters used for cocktails make for a easy way to flavor the water you just carbonated.