What to watch in 4K?

I was browsing 4K TVs at Best Buy and surprised at how far the prices have come down in recent years. I started thinking about saving up for a new home theatre set up and then wondered what I could watch in 4K.

It doesn’t seem like there’s much to watch in 4K unless you’re paying for a high-end version of a major streaming service (which I wouldn’t pay for). MLB TV, which I would buy, only offers 1080p. Also, I don’t own a 4K disc player of any kind and wouldn’t spend the money on a physical copy of a movie just to watch it in 4K.

It seems like the TV creates a necessity to pay more for the same programming, or having redundancy in your picture quality.