QUICK ANSWER: A spot screen repair makes sense when the damage is limited — one or two torn panels on a screen that's otherwise sound and not too old. A full rescreen makes sense when the screen is failing everywhere: brittle, sagging, discolored, or pulling loose across many panels, or when patching keeps becoming a recurring chore. The deciding question is whether the rest of the screen has life left. If it does, repair the damage; if the whole material is worn out, rescreening is the better value.
