I love the chance cards in TS2, they are fun, unpredictable and best of all could be ignored if you weren't feeling risky. TS4 cards are okay, but a bit blasé in comparison. I personally think the cards need to be expanded upon and an ignore button added.
A little OT...but in my opinion the same goes for treasure maps and boxes. I usually just sell them. It's been my experience they're usually worth a lot more than opening the boxes and getting... Surprise! Another MySims trophy. Pfft... I know some people have gotten voodoo dolls, and other stuff, but that seems to be a very rare occurance.
The treasure boxes need to be overhauled, in my opinion, to include other collectibles and when using a treasure map a higher chance of actually acquiring one of the 'rare' MySims or something more valuable than 'normal' boxes. *shrugs*
