If you are thinking about a PS3...I'd say do it. It's a great system (I just bought another yesterday...I found one and was like...why the heck not), and I personally think PS3's and 360's are only going to rise in value. It was the last gen you could really just plug in and play with out relying on the internet.
Agreed. The PS3 era was in many ways the pinnacle of gaming, at least for me. Series like Uncharted, Mass Effect, and Witcher were born in this era. The PS4 improved upon them graphically and was a great consolidation system, bringing many favorites from various eras and ecosystems into one place.
To give you an idea, I've had a PS5 since launch and only 3 generation exclusive games were interesting enough for me to buy...
- A Plague Tale Requiem
- Star Wars Jedi Survivor
- FF7 Rebirth
All my other PS5 games are also on PS4... including the newest God of War.