Yeah I used to try to finish one game before I bought another, but like ArchanelMike said, it's not always possible when loads of great games come out at once. Also, with PS Plus, I now have more games than I could ever possibly play. But hey, 1st world problems huh?
I think that after Battlefield 4, lots of people are going to be expecting something really impressive for the next installment. I am interested to see where Visceral takes the solo campaign this time around; there is the potential to really shake the FPS genre up. But as far as multiplayer goes, like gedden7 said, it's sure to be really fun and tactical - provided it actually works!
You're totally right, it does feel like playing a Nintendo game. And Splatoon makes me want to get a Wii U so bad!