[Ghostrider 310]

I would add age to your final decision, it's very low mileage but old and it's been subjected to heat a long while now. It's certainly true that a visual check can sometimes reveal small cracks or show something else that would cause you to change it. However, it's also true that a belt can look good and still be near replacement time. If I was sitting on one and had it apart I'd change it.