I never really cared for the figures which would have served as decoration and I don't know what I'd do with a bunch of them. I liked that the content was largely unnecessary so I didn't feel like I was missing much. For $13, the price wall was too high for that content, even spread across a many games, though I considered it at times. If an Amiibo card is like $4 or $5, I could probably talk myself into picking one up.
Still, it's just a different kind of DLC rollout method. With that in mind, you're left to wonder what the point is. Was DLC so broken? It depends on how companies handle it. I thought Nintendo was doing well in that regard. Amiibo potentially gives you more value since it can be used in multiple games. It just seems extraneous.