[mrob]

1000Hz is enough to match CRT quality on a sample-and-hold display, but only when you're displaying 1000fps content. A great many games are limited to 60fps, which means you'll need to either interpolate motion, which adds latency and artifacts, or insert black frames (or better, black lines for a rolling scan, which avoids the latency penalty), which reduces brightness. Adding 16 black frames between every image frame is probably going to reduce brightness to unacceptable levels.

[MichaelZuo]

How many nits of brightness did high end CRTs reach?

[mrob]

The brightest CRTs were those used in CRT projectors. These had the advantage of using three separate monochrome tubes, which meant the whole screen could be coated in phosphor without any gaps, and they were often liquid cooled.

Direct-view color CRTs topped out at about 300 nits, which is IMO plenty for non-HDR content.