One of the 'less reputable' operators I worked for in the olden days in Brisbane imported a heap of stuff and I remember them getting a container of those smaller sized woodgrain looking tables - I thought they looked ugly at the time and they still do  - anyway they had Irem Invaders PCBs in them. They made the same money as the Taito tables but cost 1/2 the money to buy.......made sense at the time I suppose, you could cover double the sites for the same outlay and make double the money.