Its... damn, this is EXACTLY how I feel. I've been endlessly rewatching the trailer over and over. Its the only trailer I have constantly gone back to. Little Mac came by "oh, cool, he looks great." Only watched it a couple of times since. Debut trailer "eh, it looks alright." Mega Man: "YES, its Mega Man!" But I've only rewatched it a couple of times. Rosalina? "Best pick from Mario!" Still barely rewatched it. Greninja? Don't care. Didn't care that much about the Mii Fighter or Palutena trailers, either, and I don't think I EVER watched the Wii Fit Trainer trailer.
But Robin... Damnit, Robin, I just HAVE to keep going back and watching it over and over again. I think I'd feel the same way in a DK-based trailer, or for Isaac, because both are in my top 5. I just can't contain the excitement, and yes, it feels surreal... even though I know it is real. :D