Memorizing Dialogues

I've been using chinesepod for a few years now, and while my listening skills have improved tremendously, recalling and using what I've learned in past lessons has been a challenge. This is mainly because after I've gotten to the point where I understand a lesson, I shelve it and move on to the next one.

A friend recommended to me a while back to learn by memorizing dialogues (and understanding their structure).  A person in a video I found recently on You-Tube really seems to have made good progress using this approach: ( http://www.youtube.com/watch?v=6f237bj1hkI ).

This has inspired me to do a "reboot", start back at the beginning of Elementary, and start memorizing all the dialogues in the lessons that I already completed. Also, making sure to understand all grammar points and vocab found in the dialog.

So my open question to everyone is:

Do you currently memorize the dialogs so that you can recite them from memory? Why or why not?