There is also the biting irony of it - conservatives want to essentially overwrite the constitution with an old tradition they had no loyalty to before, and Scalia was a strict constitutional originalist...
So essentially they're in spirit disregarding the powers outlined in the constitution that Scalia, their dear martyr, held so dear in order to score political hit points on a departing President. Then again, Modern Republicans exploiting the memory of one of their own for political gain is not so unusual.
I also heard, oddly enough, that Ruth Bader Ginsburg was a friend of Scalia, and I really don't get the friendship thing there.