[quote name='LinkinPrime']Thats what I was thinking too. I heard that missing out on the GBA version is like missing a good chunk of the story too. I was never intersted in the GBA version because of the card battles, so that one i'm skipping for sure.[/QUOTE]
Well... so far, from what I've played, they briefly talk about the events of the GBA version, so its not as necessary as knowing the plot of the entire first game.
You're not going to miss as much if you don't play the GBA version, and besides, just read a plot summary for that, its not worth going through that game.