You are of course correct but at the same time I often buy games for $5 - $10 on sale that are a few years old and after completion they have little to no repla

You are of course correct but at the same time I often buy games for $5 - $10 on sale that are a few years old and after completion they have little to no replay value. Although many may not be as frugal they might well have the same attitude towards reuse/replay/resale. Play and forget.