There was a time in the early 80s when 64k RAM chips had a significant defect rate, such that half-bad ones could be obtained at a discount. Some computer manufacturers such as Sinclair and Tandy took advantage of this.
48K RAM was a fairly common configuration for a number of different computers in those days. It seems to me that it could make sense to supply it with quarter-bad 64k chips.
Did anyone ever do this? Or is it the case that it would've made sense, but no one ever happened to do it? Or is there a technical or business reason why it would not make sense after all?