I've been giving that some thought lately.
I don't want to add a MIDI musical sound track. That would be too cheesy.
What I have been thinking about is adding some sound to shuffling and/or playing dominoes on the board. (I mean, who doesn't love the sound of slapping down some tiles?!)
OR
I have been thinking about adding voice where the game would actually talk to you. Maybe even trash talk!
I want to do this right since the sound files are so large. I want to make them worth the download.
So, what do you think? What direction should I go?