FYI the March 13th game is not home. You might not find any discounts here for that game.
The other 2 are probably best purchased closer to March form someone here or from StubHub. It looks like they will ship to Germany but call them to make sure. (866) 788-2482 (I can't find an international number) Just compare the price to the team site Devils Seating Chart to make sure you are getting a deal.
you think that the price go down when is goes closer to march?
what about ticket send via e-mail?