They have no standards.... it's just a money grab. Consider this...
You can buy an entire display box of Topps 1968 Posters for $575. Yes, you get the complete and entire Box for
$575....
https://rockhurstauctions.com/LotDet...entoryid=13073
OR.... you can cut away the Mantle portion of the box, which is die-cut at the top and attached at the bottom. It was meant to be flapped up for retail display purposes. It was never meant to be cut away from the box. But if you decide to deface it, you can charge
$7,500 for the altered Mantle image inside of a PSA slab. That's
13 times the cost of the full un-altered Box.... What a difference a slab makes...
https://www.ebay.com/itm/145765980141
And lastly, if you deface the Display Box just right (and know the perfect random spot to guide your scissors) you can get a NUMBER Grade from PSA! This altered example was assigned a 3.5 grade for some unknown reason. But this particular Box Defacer only charges $5,500 for his example... that's only 10 times the cost of the full box. What a deal.... makes you want to ask PSA what even qualifies this as a "card"....
https://www.ebay.com/itm/196454276591