So Mario Party 9 is as good as the DS one or not'
Yes. Mario Party 9 is and has been getting great reviews from everyone. If you like these types of games I highly reccomend that you pick it up when it comes out. Go through this thread and look at some of the reviews and videos on it. Gonna be a lot of fun! Also if you are looking for a fun party game, Rthym heaven is out for the Wii as well in the West. Bad sales, but a fun game!
Tell us how it goes! Also lots of good e-shop games out now as well.