Hickey v. United States , 208 F.2d 269, 273 (3d Cir. 1953) (“While it is true that prior sales of the condemned property eliminate any question as to whether another sale was of a comparable piece of property, nevertheless the comparison of sales of other properties have their advantages too. For example, the sale of another property may be closer in time to the date of the taking, and therefore would reflect more accurately the condition of the market at the time of the taking.”).