A few days ago I bought a spare monitor, in case one failed. But presumably it would be of better quality than my older monitors, so swapped out my oldest monitor for the new one. I can use the old one for machines that have previously been headless.
That wasn't as simple as it sounded: yes, they have the same resolution and pretty much the same dimensions, but the old one was connected by HDMI, and the new one doesn't have an HDMI connection. So I ended up having to move monitors around, and since the other monitor with HDMI had a different resolution, I had to restart (but not reconfigure) X.
But that was all. Was it worth it? Yes, I think. It has more contrast and brightness than the old one, so it's more suited for photo processing. And finally people are marking the locations of the controls visibly on the front, so at least I can find them when I need them.
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