You bring up a good point. Exactly who is pushing this to the Supreme Court? I’m sure the NRA isn’t (I’m a member and haven’t heard that it is). Isn’t it the DC city council?
Robert Levy and Alan Gura, with the backing of the CATO Institute, are the ones truly pushing this to the Supreme Court. DC is doing so only because it’s their last chance to get the Circuit Court loss overturned; Mr. Heller et al won at a lower level, but enthusiastically support raising it as high as possible. Getting to SCOTUS was the goal from the beginning.
I think so. Rather than changing their laws to allow assembled weapons at home or allowing registration, they chose the "big showdown". They've got nothing to lose -- they've already lost.
Granted, there's little we can do about it, but I think dancing in the streets is inappropriate, uncalled for (given the factual history of the second amendment), and way too premature.