Anything similar to KBB for used scooters to check normal prices?

Going to a dealership tomorrow to buy a new scooter (no time to deal with private sellers unfortunately).

But, I have no idea how to know what a scooter is actually worth, or if I am getting worked.

Anything similar to kelly blue book/edmunds/etc to at least give me a general idea what a used scooter is worth?

Thanks!