"Amiibo DLC" would consist of the amiibo characters as in the form of digital DLC content which would be available on the eShop and it'd work with every game the Wii U has to offer. As such would you consider buying it?
I know I would because it'd be a lot more convenient, easy and no need for figures. Plus, the prices shouldn't really be more than £3-4 ($4-5). I guess they could go with £4.99 ($7) as its standard price which wouldn't be unreasonable given that it'd unlock everything, in the regard that what the amiibos offer.