More people here are finding out the hard way that warnings by experts and the Government about buying shoebox units in the heartlands are true: There is low resale demand for such units given their location, and they are too small to raise a family in. Even so, shoebox units in new projects in the heartlands continue to sell like hot cakes — often thanks to good marketing and persuasive property agents. At some of the recent launches, shoebox units were the most popular among buyers, developers told TODAY.