Guestbook & Card Box?!

I have been going back and forth on where to put my guestbook and card box. 

I heard and seen many people place these items at their cocktail hour. Which I loved as a guest because everyone needs something to do at the cocktail hour (other then drink and stuff your face) and it allowed me to get rid of the card I was carrying around. 

I was then going to move these items into the reception room about 5 minutes before the guest entered our ballroom. However, I am super nervous about moving the card box around sine it is so valuable . 

Any suggestions