Give me a new course over a driving range every time.
In real golf yes .. you need a range to help you warm up. On WGT it''s not that big a deal. yes it might help you get your distances down with each club / shot type .. and give you some practice hitting the sweet spot on the meter ... but that's about it. It might improve your game but just a little .. what you need to do in WGT to get good is take it out on the course.
In my opinion what folks really want is the ability to play each individual hole in a practice mode over and over again. For example --- it would really help if you could hit your approach shot into BP #5 50 or 60 times in a row .. from various distances between 140 yards and 180 yards .. with varying wind speeds and directions and with varying green speeds ... so you can learn how to hold the green. Or Kia #13 so you can learn where you want to land the ball so you have a decent birdie putt. Examples could go on and on.
In short what folks do NOT want is to have to play 100's and 100's of full rounds in order to learn the idiosyncrasies of each hole. IMO you have to play them to get better.
I'm not good at all ... but by my calculation I have easily played each hole on Kia and BP 1,000 times, I have over 25,000 putts ... you need to put in the time on the course to get good.