hmm, since u ask this, i think i would say:

the problem that has plagued those pirated games are their batteries die quickly. when i play gba, i still recall every time i switch on my gba, i will be afaid if the save files are corrupted and this has been killing.

secondly, i find that price of nds original games are quite affordable and cheaper than gba original games b4.

plus, i like original games, but most of my original games are used. well, since they are still original games, so it makes no difference whether it is new or used. i am still supporting original. i always hunt for good deal

lastly, i am a collector of original games and i am currently trying to collect as many gb, gbc and gba original games as i could at incredibly low price. that is also why i havent bought original nds games in a while

other reason leh, other forumers have mentioned it like the valuable manual and box, so no need to repeat again.