Barozi on 28 August 2013
They are cheap to make, that's the reason.
The engine exists (for DK) and is just getting enhanced/used to its full potential. The art style has a simple, comic like focus, thus not aiming for many details, which means that it's rather easy to draw/model something.
No real story, voice acting, licensing which means that only the level design is the other big part that eats away some money, but that is mostly just copy and pasting assets here and there.
Wind Waker HD is a remake so it's rather obvious that it's going to be cheaper.
