BogeyOne: Don't know who made the claim about it destroying WGT as that certainly was not made by its creators.
There were lots of people in the forums here who were hooting and hollering and licking their lips about how WGT was finally going to have some serious competition and it would be a big comeuppance for them. Those same people were saying they would be off like a shot the moment PP opened their doors. I don't think they made quite as much noise when they came drifting back to WGT though.
BogeyOne: About 20 or so courses come pre-loaded with the game but there are 448 free courses available for download (including all those found on WGT)
Correct me if I'm wrong, but I don't think Congressional, Oakmont or The Olympic Club are available where you indicated.
I tried that game back then out of curiosity and had a look again recently but I still don't like it as much as WGT. I'm happy for you that you like it so much more but graphically I find it poorer and the camera views and ball flight physics I find to be lesser alternatives.
I've never stopped playing WGT and I won't now either, until the day it is gone from this world, or the day I am. I don't care about my CDP at all so I'm not as interested in that "statistic" as you are.
In short, in all these years I have still never found a golf game that compares favourably to WGT and that certainly includes the one you are talking about.
Oh and by the way, you might want to remove the direct references and link from your post. WGT never did take particularly kindly to people effectively advertising competitor products in the forum, and I can't say I blame them.