Quite frankly, I am surprised that more courses haven't been built on the terrain between Spokane and Pullman.
JMorgan,
I've been saying this off and on for the two or so years I've been on GCA.com. There is some terrifific unduation over the entire Spokane area due to the glacial floods that happened there centuries ago...and the land is pretty cheap to boot.
The biggest difficulty I would guess is finding a customer base. Prices in the Spokane area are dirt cheap and even the gem that is Indian Canyon can be played for less than $30.
Will be interesting to see what the new layout in Walla Walla will hold.