In real estate terms, "highest and best use" means most profitable.
Yes, I am well aware of that...
but, profit in dollars doesn't always mean ultimate profit...balancing old with new, nature with human and respect for 100-plus year old trees has much more value in many minds...we just don't have enough of those minds in these parts IMO.
One can always make money, but (apologizes to Joyce Kilmer) only God/Nature can make a tree.