I pre-ordered the Little Mac Amiibo from Target's website. The day it was supposed to ship they cancelled the order. Apparently Toys R Us cancelled all of their orders for the newest few Amiibos as well. I scrambled to find Little Mac somewhere else, but every single online store is out of stock. Sorry, I could get it on Amazon for the hot markup price of $35.
Either this was a large screw-up on the retailers part, or Nintendo is producing way too few of these things. In this case the thing was basically discontinued before it even saw a retail release.