I've noticed the same thing Bill. Especially with plastic lawn chairs. They used to last for years but now after 2 yrs they break and become useless as well as turn chalky and rub off on my clothing.
With the Chinese using recycled styrene who knows? Will current kits still be buildable after 60 yrs like the old stuff. Of course, most of us on this forum won't be around to find out.
I like your quotes as well.