On one side, I do understand that an "everything for free" enterprise does not stand much of a chance at long term survival. The revenue sources that WGT for the base platform (balls, clubs, club fees, etc..) perhaps do pay for the baseline product.
Wanting extensions to the product (new courses) would also warrant additional fees - I am not opposed to paying for outside developed courses. However, they should meet certain quality standards (photo realistic graphics vs. computer generated landscapes) and the price point has to be right.
Where as the TruGolf courses may indeed be enjoyable, paying 100 credits for 9 holes isn't going to happen. If we were talking 20 or 25, perhaps... but at 100, no need to even think about it.
Summary: Revisit the pricing policy.