If the motors are still the original , the brushes would be worn , and chances are they would be ready to give up pretty soon anyway . The pump might work ok , but seals and moving parts wear in it so it may quit on u tomorrow . The rest of it , who knows , everything is a potential problem . If you can work on the machine yourself you can easily overcome any issue that occurs .
But if you cant ... i would stretch or save for a new machine that unlikely to give you issues for a couple of years .