How much is this pin worth? When was it sold and for how much, or how was it available?

Disneyland (5/9) Pin

U get the pin for making a account in the Disney park! U also get black mickey ears and badge saying: Born In Park. I believe it is worth quite a bit!

thanks for the info :)

Yes this is one of the more rare pins, probably more than the tomorrowland pins, but less than the tomorrowland 8/9 pin.