The popularity of EM pinball machines seems to be regional... For example, project EM pinball machines for sale in this area sit for months. EM machines that are working and in decent cosmetic condition will probably sell within a month. Although, working EM machines with higher price tags are slow to sell. But, project SS machines by Bally, Wms, Gottlieb and Stern sell within days of being listed... I guess sales depend on where all the "EM" people are located....