i didn't say it'd be full up right away did i? But things like all those PS+ games etc...just nice to dip you toes into now and then. I just like the idea of not having to keep deleting stuff and given that 5tb drives are about 100 quid, that seems a good price per tb to achieve that wish.
I get you but I have over 20 and my 2tb (1.7gtb) is nowhere near. Sure it future proofs you but I'd be very surprised if you filled it ever with ps4 games. Especially as most plus ones are indie.