The deal with the mugs is that you buy one, and get to refill it anytime for free? Considering how much pop we drink, that's a good deal. How much are they?
The sign at the beverage station at CBR states that the mugs are good for the length of the stay when you purchased your mugs.
This was from our recent trip in Jan. 2003. You will get lots of opinions on the reuse of the mugs. Ours were 10.99. I don't have a problem paying that. I am sure we got our monies worth.