United States v. Benning Hous. Corp. , 276 F.2d 248, 253 (5th Cir. 1960); cf. CSX Transp. , 552 U.S. at 18 (rejecting contention that it is “as likely to get an accurate result by [one valuation method] as it is by employing another method altogether” because “some approximations [a]re better than others”).