No, I just don't think such a high refresh rate accomplishes anything. Not even bragging rights. 120Hz, possibly. But 240? Are you going to introduce a telly into a slow-motion studio, on the set?

The difficult thing for these standards is the data rate. 4k 240Hz is the same data rate as 8k 60Hz (since 8k is 4x the number of pixels as 4k).

If you want to support 8k 60Hz, the only reason you wouldn't also support 4k 240Hz would be because you actively choose to disallow that. That seems like a bad idea.

It's diminishing returns, but for those who want it and have the hardware to support it, why not?

I have a 360 and when I play something I can actually get a full 360 out of, it's wonderful! Though honestly anything over 100 I'm perfectly fine with.