They are probably 'OEM' versions, that shipped with a new PC/laptop. As such, they should not really be 'sold on' as tecnically they are only for use on the PC they came with. Some OEM software won't actually work on a different PC.
Why are they for sale?
Someone bought a new PC, and already had a retail copy of the program that they had bought for their old PC, so are selling off the unwanted software that came with the new PC, as a guess.