Mark,
My point was about the value I'd place on maximising variety in the courses chosen, and I stand by that. Some might put Peninsula-Kingswood above other sandbelt courses in the pecking order, but there is a point as you sample the depth of offerings in a region like the Melbourne sandbelt or London heathlands where you stop seeing significant newness or difference in what the courses offer.
For a golfer visiting from afar who might not get back, I think there's more value in playing National (Moonah), St Andrews Beach, Barwon, 13th Beach and Port Fairy (if they'll justify the drive) rather than getting down into the middle of the sandbelt pack and seeing less-good versions of what you've already played.
Scott,
Not sure I agree with all of this. If anyone is well travelled in the UK, or planning to be, there would be very little reason to go to Port Fairy or even Barwon Heads. There is very little original interesting architecture at these courses. Conversely, a lot of the second tier sandbelt courses have a heap of really interesting architecture - commonwealth, YY, woodlands, for starters. I would also say that Peninsula's modern take on the sandbelt style would be of significant interest and contrast to RM etc.
I do agree that a trip to the Mornington Peninsula to see St Andrews Beach and one other good course (moonah, gunnamatta) is a good idea.