I would totally be interested, if the price point was very reasonable and the quality would be good enough to run through a printer. That's just not out yet. Quality, maybe. Price point, no.

Even if it was something that was very slow, but could still eventually turn your old scrap back into usable filament. I'm sure one day it will be there. Not sure when.

I just watched a documentary on Netflix about all the plastic floating around in the ocean's and such. Just imagine when 3D printer's are as common as a regular printer.