We all know that the PS4 is NOT backwards compatible, but, in the future, GAIKAI will let us stream PS3 games.
Assuming all PS3 games can be streamed to PS4 AND assuming they will have trophies, which PS3games will you buy (again) ???
For me, it would be:
Port Royale 3
And which PS3-games would you stream/download if the we're for free?