Sean,
Certainly change for safety issues is a real tough question. While we can all agree that golfers should be able to be careful, one injury in a tight spot would cause many to rethink, and two would cause all to rethink, at least I think.
Do you find that thought interesting?
I agree that there ought to be some level of preservation of our golf design history. I don't think I want any government involvment, as in using the historic register, but maybe. Like you, I don't know what the magic number is. Like Mike Young, I believe there are so few courses that are truly unchanged to warrant saving, and I don't think that a rebuilding restoration would be quite the same as saving true original work. Again, in general, and each specific course must make its own decisions.
Taking my Dornoch Hills involvemet for example, as TD did. Maxwell's original NGLA inspired fw plans were long gone, probably with maintenance reductions in the depression. His greens were gone in 1956, probably because they required returfing, and club members figured they would soften those blasted contours at the same time. Chris Clouser would know, but I am not sure there is enough photographic evidence to have redone them correctly if they wanted. And, they didn't want to when they hired Nugent.
I recall discussing restoration with them, including the dramatic fw bunker on 10, but they were only interested in matching Nugent's work. And, they barely had enough funds for the second nine holes, so going back to do three year old greens was not going to happen. And, they didn't want Maxwell contours anyway, as they were tired of putting off the greens as they were. Lastly, there were some circulation problems for carts that Maxwell couldn't envision that they wanted fixed, and the swamp in front of 17 green was a problem, even if originally designed in, so we added a pond.
I wonder if the club has restoration envy now, but even if they did, a small town club probably won't have the chance to do it over again, at least for a long, long time. And, if they did, my pond would probably stay, and some of the original features probably would never find their way back - on the original plans, those huge fw bunkers would cost a lot to build and maintain, and the cost would likely be an issue again.
What outside agency could force a modest means club like DH to build something outside there (presumably) modest means? Does historic preservation rule at all costs when its your money being spent vs when you advocate it on golfclubatlas.com for others money to pay for?
I understand the general lament that a historic course is gone, but also the practical realities facing most clubs, similar to those in my specific example. So, at DH, and most other places, it just is what it is, and a lot of factors go into the final (or should I say current) product.
Sometimes we lose sight of how much joy that course - in its many forms - gives its golfers, regardless of mixed pedigree. Do we need a purebred show dog or can a mutt be just as good a companion?