The Apollo landing zones are incredibly unique. On Earth, preserving an historic site usually comes with a multimillion dollar price tag to cover ongoing maintenance. But on the moon, where there’s no weather to wear theses sites away, preserving them is as simple as never going near them.
Neil Armstrong’s boot prints will never fade. There’s also science at those site that ought to be left alone; bacteria in fecal collection bags could be of interest to future biologists.