So I took a look at the new 'append suggestions' mode, and I liked it. It was fun, and clever. So i extended it. As not to be sued by iTunes, I called it dynamic mode and not party mode. It's fun.
The basic functionality of this mode works as follows. As a track is played, the first entry of the playlist is removed, and another random track is added to the end. The greatness of this simple addition is that it allows for a non-finishing, super-exciting, greatly-suspenseful, automagically filling playlist - all in a very small amount of space! It's like a previewable random mode, but cooler!