Last fall, when Netflix hiked the cost of its top-tier Ultra HD plan by 15 percent, I had finally had enough: $22.99 a month just felt like too much for the ability to see Jaws in 4K video resolution. A couple of weeks later, I heard that Max was pushing up the fee of its own 4K streaming by 25 percent. Now I wasn’t just annoyed, but confused. Super-high-res televisions are firmly ensconced as the next standard for home viewing of TV and movies. And yet, super-high-res content seems to be receding ever further into a specialty consumer niche. What happened? 4K certainly is ubiquitous; you won’t find many sets with lower resolution for sale at Best Buy. In practice, though, the technology is rarely used. Cable signals are generally mere HD, as are the standard plans on most streaming services. And the fancy new displays, as they’re placed and viewed in people’s homes, may never end up looking any sharper than the old ones, no matter what Netflix plan you have. In short, the …