This particular situ begets a more interesting possibility, and that is someone scouting for a high value card sitting in PSA holder that has been obviously trimmed, and is for that reason not selling for its true value in the market.
Say perhaps you can make an agreement with the Seller of a PSA7 51' Bowman Mantle that won't move at it's contemporaries number, for perhaps 60-70% of that value, hold for few years while the market hopefully continues to rise, then bring the card to the attention of PSA for restitution of what a truly graded card at that particular tier would bring.
You buy in at 40% below market but get to be made whole at full true value down the track, making not just the capital gain of the flip number but your bonus discount from below market purchase.
Get on the hunt boys!
