I am not expecting warranty on used equipment, however, for a machine does not have a warranty, even it is a high end brand name equipment, such as Roland, Graphtec, once it breaks, you may still get nothing but losing your money. I suggest always getting something covered by warranty and support, if you can afford, a Roland, Graphtec plotter would be nice and perfect, if not, go find some brand new low end machines with good support, use it to make money first, then upgrade to a decent high end machine.