WGT has to reach a licensing agreement with each golf course it wants to add.
Use licenses cost a lot of money.
WGT recently added the Pinehurst #2's front 9 and back 9 for CTTH play.
This May we get Pinehurst #2 for 18 hole stroke play because it's the 2014 US Open Venue.
WGT is currently working on an 18-hole stroke play course made from 18 of the par 3 holes at the Bandon Dunes Resort golf courses. WGT players got to select 9 of the 18 holes holes.
The required photography (it takes 200,000 to 300,00 photos which costs several thousand dollars to shoot) has been scheduled so WGT can then add Pebble Beach Golf Links for 18 hole stroke play.
In May of 2015 we will get CTTH and 18-hole stroke play versions of the 2015 US Open venue Chambers Bay.
FWIW - adding all 18 holes of a golf course requires about 6 months worth of work by WGT.
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