Disappointed too. I can understand that a lot of developers are committed to the app store, and it's probably quite a bit harder to develop for the 3ds (cost, testing, 2 screens, 3D, blah blah) so the dearth of third-party content is understandable, if not likable.
But Nintendo's own shit? What's the hold up? Why not put all your big retro guns out there and let people buy 'em up? Where's there even any risk in that? It's digital content! No shipping fees, no storage fees, I know you all know this already, but damn.
They've had virtual console in their "development budget" for years already with the Wii and I am disappointed with their rate of releases. More than that, I honestly don't understand why it's so slow.