Apple offered me a trade-in of $180 for a MBP 13" Retina Late 2013 model which is no longer eligible for OS updates. Two months ago the offer was $240 .. oh well. I paid about $1800 for it new and got 8 years of trouble-free service. So, for $200/year I'm completely satisfied. But I'm wondering what Apple's trade-in partner can possibly do with a perfectly functional, quite good looking, but non-updatable laptop? Does it have any dollar value here in the US or elsewhere in the world beyond the sale of its component materials?