4K video takes 10 times more space and is transferred via Internet slower than lower resolution videos but think about the cons. You will have a better quality, the picture is more detailed and sharp, and moreover it makes it easy to crop out individual video frames still having high-resolution. The 4K also creates the immersive experience of watching a film at the cinema. Talking about the future - the 4K TVs are already selling well for such a new technology.
We recommend you to upgrade your package to 4K just for $250 additionally.