Shann,
You are correct that "fog juice," as we like to call it, is the wondrous liquid Shok mixes up in his lab that allows us to ride around in the limo bus like rock stars.
It's much better than dry ice for a number of reasons:
1. You can't turn off dry ice.
2. Dry ice can do some damage if it touches your skin.
3. Dry ice takes up a lot of space, whereas 1 gallon of Shok's fog juice provides many hours of fog-o-rama.
But wait!!! That's not all!!! If you order Shok's Fog Juice now you'll get the free set of Ginsu Knives along with the Ronco Pasta Maker! haha