shuffle...it just knows

I have had some pretty terrible shuffles in my iPod owning days, but more often than not, the Shuffle setting seems to take consideration where I am, what I am doing, and what type of music should be playing.  I obviously like all of the music on my iPod (and the majority on my husband’s), but on more than one occasion it has gotten itself into the perfect genre and surprised us with the perfect playlist.  The most memorable ones happened during this past vacation and on a few roadtrips, but we have also experienced it at home during dinner or just sitting around.  I am a fan of Mac products and feel like there is something very special about each and every one, but are they magic?  I almost think they are...