If "Consumption" is about the moment of acquisition, "Unconsumption" simply describes everything after that.
Unconsumption means the accomplishment of properly recycling your old cellphone, rather than the guilt of letting it sit in a drawer.
Check out Rob Walker's Unconsumption (some great definitions of the term on the right column), and then hop over to their new Wiki, "with a focus on links and tips for fixing it, making it last, repurposing it, getting rid of it responsibly. (Whatever 'it' may be.)"
This could be great.