The obvious answer would be to buy the latest and greatest. Here's where I'm wondering.
1. Infinity is mostly played today on the PS3 by my kids. I don't really play many console games anymore. If I have time to game it's usually on the iPad or PC.
2. Infinity and a few other games are mostly what is played on the PS3.
3. BIG ONE: I'm not wanted to pay the yearly fee for Plus. Will that keep infinity from working? Downloading Toy boxes etc?
I could probably sell all our PS3 stuff and have enough to buy a new PS4, but I'm wondering if that's going to be worth it and more expensive down the road.