Considering that Rare lost the vast majority of it's talented team members shortly before leaving Nintendo, I don't see it as a loss, and if Nintendo had kept them, their Donkey Kong games would be just as average as say, Grabbed by the Ghoulies or Kameo or Perfect Dark Disappointment Zero.
And yeah, I did fail to mention Bongo Blast and Mario vs Donkey Kong 2. I'm personally not too excited about those two right now, but I'll probably give BB a rent when it comes out. A bongo-driven racer just doesn't fire me up as much as a DKC-style sidescroller would... drool.
Mario vs Donkey Kong 2 on the otherhand, DOES sound like a pretty fun dealio, however, it's more of a puzzler/strategy deal now (you indirectly control the mini-Marios ala Lemmings) when I was hoping for something more like Donkey Kong '94. So again, I'm not all fired up about it, though I'm sure it'll be a slick game when it comes out (level editor? Hells yeah!).