I agree that it may be worthwhile considering getting a PS+ account…
I too don’t currently have one, I thought I wouldn’t bother and preordered the game months ago, before playing the beta, as I figured I would just play the offline storymodes, etc, not anything online (which you can still do by buying the game, it has offline storymodes, etc)…
But I really enjoyed playing online with other random people (these features you need a PS+ account for), that I don’t think I could go without it now… Way too much fun!
Also a lot of other games have these features too now, can’t play any of their player vs player modes without a PS+ account, all the big titles are pretty much making it an essential staple…
So I for one, will invest in a PS+ account all thanks to Battleborn… But if it isn’t your thing, and you can continue playing games without it, then hey, more power to you for not freely handing over your cash!