Fla. Rock Indus. v. United States (Florida Rock II), 791 F.2d 893, 903 (Fed. Cir. 1986); see United States v. 69.1 Acres of Land (Sand Mountain), 942 F.2d 290, 294 (4th Cir. 1991) (“The buyers in the sand reserve market are limited to those with foresight and patience, but they are nonetheless real buyers in a real market.”).