I don`t think a price drop would help them in the long run. If the games aren`t there - and they aren`t there - then a price cut effect would not last.
To me there are two things 3DS needs: games and a redesign that makes it look completely different from how it looks.
If people aren`t aware DS and 3DS will really look like a enhanced version of DS.
Nintendo should have done this since the very beginning.