Get the DS version, I mean it!
As an Australian gamer (or player), games go for $100 so waiting and deciding definately takes a long time. I think i waited about 2 year before I got this game, when it was on sale after being a Player's Choice game.
So i bring this game home and pop it in and things weren't as exciting as i thought it would be. Soon, i started played for about 2 hours each day as different things were discovered. And catching. And other players joined in and it was a fight to see who could play first each day, just to start digging for fossils!
By the time i got all the fossils, caught all the bugs and fish - the game was pretty much finished, especially when the only way to travel was through the memory cards... so after getting Wild World, i haven't played this game more than twice since.
Do yourself a favour and get the DS version, it's pretty much the same as this one but with more, MUCH more. Just be sure that AC:WW is only owned by yourself, it will make gameplay a lot more interesting. Trust me. Unless you want to play the NES games not found in the DS version.