I don't know much about this game but The Reject Shop seems to be the cheapest place to buy it.
There was a few on the shelf today in Tuggerah NSW.
Experience the excitement of Monopoly on a global scale with Monopoly Travel World Tour. This portable edition of the classic game allows you to trade, buy, and build properties wherever you go. Compact and affordable, Monopoly Travel World Tour is the perfect on-the-go entertainment for family and friends.
My kids, 7 and 5, love this game. A game lasts 20-30 minutes, and the 7 year old can run the show- recommend. (I bought it at Aldi, not sure on $)