I believe that that airfield is going to get a heck of a lot of arrivals from the east electing to complete the ILS and then circle.
Or, because they are not performance limited, accepting a tailwind on landing. I don't believe that an ILS and circle to land gives any minima benefit over a non-precision approach easterly.
So, pilots will have to do a considerably less safe procedure in the name of safety. (A higher proportion of people die due to f***ed up non-precision approaches than precision ones)
I imagine that the first widow's legal action against the airport for not making the ILS available to her late husband will invalidate any current savings on not buying up the safety zone!
Timothy