/diy/ - Do It Yourself

Besides from the fun of it, is melting cans cost effective? From buying the cans out of hobos or collecting them yourself, to the energy cost of melting them, and the ratio you get from the pounds of cans you melt to the pounds of actual aluminum you cast without mentioning the ROI of the gear required, is it worth the time and effort to make lingots and sell them too keep doing it ?