The only tape I have reused again and again is the designing your destiny tape (tape or cd # 1).
The wealth planning session did little to nothing for me. I do, however, like the dream machine and passion enhancer.
The benefits I have received from using the series have generally been from when I felt overwhelmed and crappy due to too much work and pressure. I'd listen to the first tape and feel renewed, recharged, remotivated. It really helps reconnecting me with the sense that I can accomplish things and my reasons for doing so. Sometimes that is very, very important.
I think that the series is incredibly well designed and pleasant to use. Bandler is funny, entertaining, and has a very powerful voice.