PP has some of those courses you guys mentioned with different names (course rights I guess). there are about 200 courses already to be played and more coming, at least one new every second week.
PP can only be played with pc and you need a new PC with at least 8 gb ram and a 4 gb graphic card, you pay once and can play all new courses free. There are about 8 famous courses you need to buy in order to play them.
I could imagine that VR will play a role in the golf game industry soon (if not already). Imagine having you VR glasses together with a real iron in your hands and being placed in a hole somewhere, hit your ball and see it landing somewhere ahead. That would take any internet golf game off the market playing with any device as pc, pad or phone.
We can create VR environments in the company I work (exhibition & display) , it could easily be a golf environment for but we need the technology to make a VR golf game, yes the big part of a project.
However, I am positive someone will put this kind of idea together and will soon offer a VR golf game.
Meanwhile I use my free time playing PP.
Eric