One thing for sure, people who own a 52 Mantle seem to have a deep emotional investment in it.
I rarely saw that level of emotional investment with coins. Those people generally didn't care what other people's opinions were.
Ok, so, debate aside, I'd take the card with vibrant color and creases over the dull, washed out card.
I'd still rather have a 51 Bowman though, and keep the change.