Nik, as you expand your range this will not be possible unless you want to restrict your business. As an example, the printer you have just purchased is superb for glossy prints and canvasses, one could argue they are one of the best. But they are not so good at banners or stickers due to the ink they use. It would be better to get a Roland (for example). So do you get another Epson which will look neat but hinder your growth or do you go with the better suited printer and grow the businessI like everything to match so will probably want more for different applications.
Just saying
