While going through my parents' garage I came across a disused circa 2001 PC 7424. I think my dad got it when their cars were new but quickly got bored with it and stashed it on a bottom shelf, where it sat until I discovered it today.

I'm curious how this older model differs from the XP. I found a video online, made right when the XP came out, that outlines the physical differenced between the two models. What I'm curious about is in the past 6 years have people discovered a functional difference between the two that make the XP a must-have and the old model truly obsolete? Or perhaps a design flaw in the new model that makes the original sought after?

If the original is still a good design I may have just saved a ton of $$$!