It's impossible to conclude anything from a single data point.
You don't know the circumstances behind the sale. For instance, the owner may have been desperate to free up a bit of cash before a tax bill became due. Firesales will always attract much, much lower prices.
I am not saying ".net values have held firm" I am simply saying that we have literally no way of telling based on this single sale. Now if we had 50 or 100 examples, we might start to conclude something...