The life span of card models. My sister kept this one from 2011 till today.

She is in excellent shape. I still have all BSG models I built, some of them are from 2012. They are all in storage, safe from light and damage. I put much attention to the quality of the paper I used and made the pleasant experience that the ink and the paper were corresponding with each other very well. I have seen home-printed pictures which started to fade within months, even under usual daylight exposure. Not so my models. They still look as good as new. :)