It's very difficult to argue with the premise generally, but those people who have these kinds of properties and are interested in doing something generally find out about these kinds of mechanisms, to the extent that there are tax credits in the system or grants available. I mean, government does have a habit of promoting those kinds of mechanisms, because they're there for a reason.
Oftentimes municipalities promote these kinds of things because they're interested in built heritage within their communities as well, so I think people do become aware of them and will take advantage of them. To what degree is very hard to speculate on, other than anecdotally, and possibly those people of more means make themselves more knowledgeable. I don't know.