WGT cannot afford to go out and map new courses any more: from News section:
Due to the current financial climate and constant struggle to keep this site up & running, there will be no further releases of new courses on WGT until further notice. USGA have frozen us out and are now dealing with EA sports who have offered them a lot of money and also part of the deal was to stop us mapping any usga course. We may go and map a good "local" course for CTTH if any one knows of any? But in the mean time we will be releasing 4 new pin locations at Kiwah and RSG, and If we introduce our new Srixon Max ball as intended for $10 for 2 balls then we might, and its a long shot (depending on how much is spent on our Christmas party) then we might introduce a best of the best of holes featuring 1 from Oakmont as a bonus. All these in the next 3 to 267 months.
Only kidding, well done WGT, keep up the excellent work. We all appreciate it