WHEN is it time for new paint???

[SNTOS63]

This is something that's been burning in my brain for quite some time now and I'm just curious what you guys think about this matter.. I've had my paintjob for about 12 years now and it's actually decent still for a frequently driven truck, but it's just getting to the point now where it's not "show condition" anymore and more like a decent daily driver with chips and scratches and small dings here and there... Which is fine. I love daily drivers, beaters and work in progress trucks more so than trailer queens, NOT rat rods. But I'm wondering, when IS it time for a new coat of paint??? You can comment, joke, upload pics, whatever! ANY THOUGHTS would be great...