Adam,
This is another terrible trend in golf, in my opinion. So many courses are switching to the blinding "white stuff". And, you're right, it only enhances an artificial look.
Witnessing the beauty of a course like Shinnecock this week, it continues to amaze me that a majority of golfers prefer the cleaned up look of, say, Augusta National. I guess that's the way people like everything on this dirty planet: cleaned up. So they want their golf courses no different.
A majority of golfers complain most about the "condition" of the bunkers at their home course, too. Probably because they're not very good, even decent, from playing out of bunkers. The easiest thing to do, it seems, is blame the sand. So, bring the the silica! It's a terrible trend.
When it was time to bring the bunker sand in at Blackhawk, we used a local quarry. The sand in the bunkers there is indigenous to the area. We'll see how long it lasts before they bring in the "white stuff"?
Geez...