I cannot place the article, so it is from memory.
I read somewhere that there is a generation (perhaps more than one) who are unfamiliar and confused by Sepia and Black and White images.
They see them to be old, historical and something apart.
By making these images colour, they give them a new lease, bring them up to date and make everything more "current" and real for this generation.
If that is the case then it is more than worth while