Are there any reasons why Sony won't put all of PS3/PS Vita digital titles on "clearance sale"?

I'm not sure if anyone ever talked about this before, but do you think there's a chance that Sony might giving us gamers one last chance to buy and play old titles at a discounted price?

We all know that they will close PS3 and PS Vita stores permanently soon, and basically the only way for us to play PS3 and Vita games is by owning the game physically or if we already bought it digitally. but again, there are a lot of titles that almost impossible to find physically or cost almost as expensive as a brand new Dualsense.

I know that Sony still need developers/ publishers approval, but I dont see any reason why lets say Square Enix refuse to sell Lightning trilogy at 80% off at PS3 store. they might not earn that much, but hey, $1 is $1 and they also can give a lot of people chance to own a piece of history at reasonable price.