They have a characteristic failure that is repairable. I had a couple with the symptoms, the details for repairing which I forget, but I never had the guts to delve into their innards far enough to attempt a repair (I am curiously attached to being able to breathe and pump blood around my frame). They got tossed.

These days (I am now bi-focally challenged) I find that I prefer small monitors for actual text composition. To be honest I find the 9" screens of the Compacts perfect for that task.