Come on people! The idea here is to modify things to deal with other issues.
There have been comments with combos of virtues, which you can do even after the start of the game (Major Research, Cult, etc). Okay.
I also saw something about being expensive, and ... Okay.
Now, let's go to a hypothetical situation, the exact type that makes a magus, or any normal human, innovate: necessity, the first sister of the invention.
Example: a magus is challenged.
He has no skill, virtue, etc., that improves his enchantment capacities (without verditius, planet, alchemy, etc.), but ... for some reason he got a contract in which the 5 pawns will be paid, in addition to the refund, for each pawn opened on an item, I don't know, "a diamond staff" (4 * 20 = 80p.v. ).
And to continue a background, since it seems really necessary here, he has two flaws that make him not refuse the contract (Overconfident, duh, and Ambitious). He felt compelled to take the contract and now he wants to find a way to open the practically impossible object.
I believe that this should help to give some breath to those who need specific motivations.
Anyway. I saw a good question and ... Yes, the idea is to increase the number of open pawns without the lock "open all spaces, or not open" for all items.
Seeing here I even found something of the hyperborean magic: the magus opens the item with distortion, but it is still in a single season.
The closest to what I commented at first are the Amazons: they "open" an item over the course of seasons. They don't even spend pawns for this, but it's not exactly the notion of what I said.