[EPLS]

Hi all. After many years away from astronomy have decided its time to jump back in. HAve been looking at Meades and have found a used LX200GPS 10in for sale that looks in good condition but am wondering how do you tell how old it is? The person selling it is the second owner and had no idea. Two things I did notice was the software was win98 version and the eye rubbers on the eye piece and the viewing scope were spit otherwise no marks and all seems to work ok.
Any ideas what a scope like this would be worth today?
thanks