This was actually a very good OP.
I think the problem, you can read in between the lines in the OP, is, that Nintendo doesn't have a clear direction with Amiibo's. It's pretty much the same thing with everything related to Wii U, where you don't know how anything is used/games are played.
The best use for Amiibos at the moment is either to collect them or play them as action figures/dolls like my kids seem to be doing. Once the Bayonetta Amiibo is out, I have to buy it for my older daughter, who's a Bayonetta fan and wants "to be like Bayonetta, when grown up".
They should've contained each a different game you can play with Wii U/3DS in download play fashion, and/or you should've been able to transfer a Virtual Console/eshop game on it and take a game to a friend and play. Also, there should be game(s) like Skylanders/Infinity you can use them as playable characters.
I don't think there should be just one thing you're able to do with Amiibos, but all of them.
Ei Kiinasti.
Eikä Japanisti.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.
