I'm sure it still has plenty of life left in it. As long as all the normal maintenance was never neglected and the price is right, go ahead and buy it.
tires, possible belt replacement, brakes, battery age.... all those add up quick.
Look for overheated\slightly melted wiring under the bucket. Ask when the voltage regulator was changed. those were weak - causing your headlight to pop and fry the battery. upgraded better quality non-oem regulators fixed that issue easily.
I love my 250, I'll still take it over any 300 with all that techy gizmo stuff.
But ---- for comparison. Here in the states that same scooter is only worth $1200----- $1500.