> There can certainly be reasonable limits (for example, noncompliant buildings that predate the ADA were not torn down).

And yet, here we are, with a building build after the ADA, that is noncompliant. It's too expensive to make it compliant, so the only legal option is to tear it down.

While I understand the strive for equality, the destruction of information is a price that should not have to be paid in today's world.