NFC =/= DLC
That may only be a means of storing custom movesets or other data within figures of the initial characters. I don't see why that would automatically mean they will use NFC to add new characters to the game.
Either way, obsessive collector that I am, I will end up buying every figure they release, regardless of what it does.
And, on the subject of DLC, I am in favor of it
IF:
1. It adds to the game without messing up the balance.
2. It is only used as a way to add features to the game that were not possible to add during development for whatever reason.
I do feel that DLC stages are more likely than fighters, but I could be wrong. I would be open to buying, say, SSB64 or SSBM stage packs a few months after release.
On another note, if any one Nintendo series can utilize NFC figures to successfully tap into that very lucrative market while actually making interesting use of the feature, that series is Smash Bros.