Well, the PS2 + PS3 games I rarely want to revisit are all ready to play on my PS3 Fat.
And the PS1 + PSP games I rarely want to revisit are all ready to play on my PS Vitas.
Without streaming artifacts, without the need of an online connection.
So I have no intention to upgrade to PSPP (PS+ Premium)... maybe to PS+ Extra if they add some good PS4/PS5 games I don't already have.
Can you upgrade from PS+ Essential to PS+ Extra/Premium for one or a few months and then go back to PS+ Essential?
And how will PS+ handle games which are already activated with PS+ Extra/Premium and then they are PS+ Essential games for a month? Can you claim them in that month to your "Instant Game Collection" or will that be a problem changing the licence from "playable with an PS+ Extra/Premium sub" to "playable with an PS+ Essential sub"?
Their licencing model seems to get a lot more complicated.