So in the past few weeks I was thinking of getting a DS Lite (I have a DSi and a 3DS) cuse i have some gameboy advance games that I want to play but don't have a product that can play the games….. but my Boyfriend is telling me to get a 3DS XL and get ride of my old 3DS but i really like my 3DS. ya so what the 3DS XL had a larger screen and whatnot….. so what I'm really saying is what should i do….Worse, just a few days ago I got to buy a new game card http://www.r43dscards.co.uk/gateway-3ds-cards-for-3ds-3ds-xl-v410-to-v450-p-9.html, but I do not know DS LITE can not be used, if you can not use I need to re-buy card? This is what I bought the card, how can I do?

can't understand!!!!