Turns out, conservatives love judge who strike down legislation from the bench, if its legislation they don't want. Evil judges undoing the will of duly election representatives is great, if those representatives were D's.
Now this is not even close to being over, as a couple of judges have already ruled the other way. So look for this to end up with the Supremes sooner or later.
Oh and by the by, striking down the individual mandate won't undo HCR. It could very well undo the private health care sector if the rest of the reforms go forward, but plenty of HCR easily passes Constitutional muster.