It may well be a pipe dream, but I am simply waiting for the day when open sourced 3d printable goods are being designed and improved by more and more "consumers". It may not ever happen on the scale I would like to see it happen, but that model of pull (rather than the current pushing of new goods on people followed by a sales cycle) is much more appealing to me. Maybe people don't really know what they want and are more slaves to advertising that I would like to believe.