A little while ago I got a second VIC-20 which was in a cosmetically almost mint condition. Sadly the motherboard has a fault where it fails to read the joystick and the keyboard correctly resulting in the controls in games not functioning. The VIC-20 I had works great but cosmetically has seen better days. The label has come off and there has been extensive yellowing of its case. One has a serial number only in the ten thousands while the other machine has a serial number well into the hundred thousand. The cosmetically good looking machine being the oldest of the two and the yellowed machine being the younger system. So the younger system works great but looks sh*t and the oldest system looks great but runs sh*t.