I own a 3DS and would like to buy a Dsi XL. I am aware that if you own a Dsi you can transfer your DsiWare games to your 3ds. I would like to buy a Dsi XL, download a few games and then transfer them to my 3ds. Basically, I want the games I download on both systems and only have to pay for each game one time. Can I do that? Or do the games you trasfer from the Dsi XL to the 3ds get deleted from the Dsi?