That depends. If they actually did spend a lot of time and effort in making it. They're idiots. However, it could just be pure marketing talk. Personally, I don't believe it took as much work as they're letting on.
So if it's that easy, why didn't something like GT6 launch on both consoles at the same time? I mean,
it can't be that hard to make a PS3 game run on PS4, right?
I think you know that that isn't true. And there is a market for this game. Take me, for example. I owned the game (I have since given it away) for PS3 and completed the main story once. Unfortunately, my PS3 is an old "phat" model and now sounds like a vacuum cleaner when running certain games. At this point, I don't really want to fork out for a replacement, so I want to keep my ps3 running for as long as possible. In other words, I only use it for games I can't experience anywhere else.
Of course, I'm not going to rebuy every game for the PS4, but I will buy those extra special ones that I really enjoyed. TLOU: R falls into that category. Lastly, it's been speculated that one of the reasons that Naughty Dog made the remaster themselves is because Sony wanted developer input with regards to porting game engines from cell to current architecture. Naughty Dog no doubt contains the best programmers at Sony's disposal and they welcomed the challenge.
My point in the last post was that 50 dollars is still a ridicules price for a game that isn't new.
Currently discounted from $39 to $28 on
Amazon... Even if we assume that $28 will soon become it's regular price, it's still a good deal considering this version doesn't include any DLC, such as left behind. Left behind alone costs $14.99 bringing the total price to $43.99... But then there's other DLC... I think you see where I'm going with this...
Sure, if you just want to play the vanilla version of tlou (and skip left behind), then the PS3 version is the cheapest. If you want to get the DLC, it's cheaper to buy the (much) better looking and running (60 fps) ps4 version.