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I share your sadness. People follow the path of least resistance. Very often, restoration work is more expensive than building from scratch, and, as a result, many houses end up in the furnace.
If you are talking about a concrete foundation, then this is, for the most part, a necessity. Groundwater is very close here, the wood will rot very quickly.

I live in a river town here and have seen a lot of old breweries/pubs/hotels in this area give way to concrete to given the water situation. It's sad, but yes, cost prohibitive for most folks to keep these buildings alive.