Why it isn't worth it
All in one is bullshit, you still need cable, all it is a voice controlled remote
Cannot upgrade Internal HDD, headset input controller isn't standard headphone jack and controller doesn't come with rechargeable batteries
Not only is the system More expensive, but Gold is $10 more expensive than PSN+
Paywall behind apps like Netflix, standard OS features like record and share, and F2P games.
And the biggest thing in my opinion, no competition to Instant Game Collection, we all know how good it was on PS3 and Vita, PS4 is already offering Drive Club Plus, Res0Gun, Don't Starve, Secret Ponchos and another game I forgot, and of course all those F2P games like Planetside 2, DC Universe, Blacklight, Warframe and War Thunder without the need for even a Plus account.