By RAW I can't find anything that would show a wayfinder is a rare item. Our groups have just assumed they were only for pathfinders. We acquired one in a recent AP where no mention of pathfinders was made, so now I'm wondering if it's open season on these sorts of items at the magic shops by RAW or if there is a rule stating otherwise.
Alright, typically with magic items you're looking at the GP value of them (250gp in the basic wayfinders case). Can they not be reproduced with craft wonderous item?