Omg I loved this game 
I literally spent hours do basically ******* all, fishing, weeding, collecting fruit etc. but it was so addictive. I know what you mean about the villagers moving out, I was always gutted when the ones I liked just packed up and left with barely a good bye 
It was my first game I had when I got my DS 4 years ago now I think, and then my DS broke after 2 years and when I got it back I made a stupid decision to start a new game. I lost all my friends and just couldnt be bothered to build up my house and village and stuff again so I stopped playing.
I mentioned how much I loved this game to my friends a couple of days ago, and they all went on about how gay it was, but idc it was the best game for DS, without question.