We look at how the PS4 is different from the PS3, and ask whether it's worth buying.
Why The PS3 Is Still My Favourite Console Of All Time
Can I upgrade my PS3 to PS4 and play PS4 games by any means? - Quora
PS4 vs PS4 Pro in 2020: Which is right for you?
Sony PS4 vs PS3 - Specs and Features
PlayStation 3 vs PlayStation 4 - Difference and Comparison
PS3 vs. PS4: Spec Comparison
Sony has made it nearly impossible to buy PS3 games online
Xbox One vs PS4: Which console is right for you?
Sony PS4 vs PS3 Trusted Reviews
Is It Still Worth Buying a PS4 in 2023?
PS5 vs. PS4: Should you buy now or wait?
Sony: PS3 and PS4 cross-play is 'technically possible' (update) - Polygon
Sony: global PlayStation 4 sales have exceeded 30 million
Sony PlayStation 3 160GB CECH-3001A, Console Only (Renewed)