Weighing the pros and cons of amiibos almost made me sick to my stomach, haha. Over $400, and a ton of time refreshing search results spent, and I had literally used them to game not one time. Plus it looks to never end, at least for the future. Besides, I have almost zero confidence these will retain value from a collector's standpoint. They are too tied to the Wii U and this point in time, they're just as much game trinkets as they are collectable figures. Skylanders had their time as super rare collectibles, and that too has passed.
The only pro was "...they look cool on my shelf?"