TMac,
I tend to agree with you on this one.
Its marketing. I would love to taste the difference between tomato soups circa 1910 and 2010. They are still made of tomatoes, no? Maybe the new genetically created tomatoes taste different, or we add more salt or more cream, but how much different could that be?
And, there are many renovation projects labeled different ways. Imagine a gca moving a green side bunker 15 feet to accomodate an existing cart path that was never there in the original course. If the club was marketing it as a restoration, moving that bunker wouldn't change their marketing one iota.
To answer Pat's question, I believe most gca would follow the make it best for our clients and now (and the reasonable foreseable future) It is a rather new, and IMHO limited, concept to restore something to some past time frame. If you consider any design (other than museum dioramas) to be creating a funtional place for its intended purpose, then restoration is really sort of a false design premise, unless that concept happens to make the place the best it can be, which could theoretically be possible. But, it rarely is given how things change - besides cart paths, enviro reggies, and more urban runoff changing drainage patterns, so much has changed in the last 80 years, it just isn't the case in many situations.
For those courses lucky enough to be caught in time warps, restoration is most likely the way to go. For others, it is a consideration, but not necessarily THE consideration.
Now, to those who point to adding waterfalls, etc. to classic courses, I suggest that is a matter of poor design not the overall concept of what time period (now and the future vs the past) to design the course to. After all, following the latest trend isn't any better than replicating a trend from the past.
And, perhaps true minimalism is to know when to do not a lot, or assessing the cost benefit of a waterfall vs whatever was there. I don't know if XXX CC needed a waterfall in 1982, but it may have, IF the primary goal was to sell new memberships and the course looked dated.
In another thread, we talk about the effects of WWII. I do know that it wasn't just golf that strove for a modern look of design in that period, and we can't fault that generation for wanting to truly reinvent the world after the great conflice. So, there is a factor of whose opinion makes it best, which is influenced by lots of non golf factors.
Saying that we have the final answer now, in the form of restoration is a pretty narrow prism. Such certainty probably existed in the minds of those who added those waterfalls, too, you know!!