Do you care about the overall ecological footprint of Apple, as Greenpeace does, or only a few specific devices in particular? How do you evaluate likely future device lifetimes and ecological footprint, cherry picked statistics or manufacturer track record?
Should I take your evaluation in thus, or trust a detailed whole enterprise evaluation by Greenpeace?
I've used the same desktop for the 8 to 6 years, upgrading with STANDARDIZED components over the years, and my laptop from that era still works. Heck, I've got a 18 years old thinpad still working fine.
In the mean time, two MBP died on me. Try again...