I still think the model for the affordable course is found in Newton, KS, where the city worked with a developer to get free land, issued some tax rebates, paid for the utility extensions for both, built an effluent pipeline for eventual use for many others, etc. In the end, they started charging at $29, but I think it has risen out of the sheer popularity of the course.
As to being easy, the gca may have missed the mark slightly there, since its hosting the last Publinx tourney next year, can be stretched to 7400 yards (that, and carts only are a potential hazard of stretching courses through 800 acres of real estate) but it does seem pretty playable to most.
That basic formula has been in place for 100 years - let housing and municipalities subsidize the golf. We do create bunkers for views for sales, but maybe the formula is (and it really is, BTW) to remove such bunkers or many of them, at the first renovation of the golf course, (or its bunkers, which can come sooner).