A major reason to seek the is DLC access. The v1.02 update unlocks the ability to install the two celebrated DLC episodes:
: Features higher resolution shadows, improved gamma/lighting, and reduced bloom effects for a sharper look. resident evil 5 ps4 pkg updated
If the user is looking for an emulator, they might be considering using a PS3 emulator on PS4. But PS4 isn't optimized for that. There's a PS3 emulator called PS3MSELF, but it's not fully functional and not user-friendly. Plus, running PS3 games on PS4 could be legally gray. I should advise against this and mention that it's not straightforward. A major reason to seek the is DLC access