Just imagine how many people are throwing away over $1000 each year for buying brand new laptop or smartphone...
Most of them would be just fine with good quality older business laptop maybe with upgraded ram and ssd drive, and similar thing could be said for smartphones.
Speaking from personal experience, I have never been a fan of refurbished laptops. I like the speed and smell of new devices and I don't mind splashing out a few grands for a good business laptop that I use for work.

My laptops last 4-5 years, and then they die. It's always the motherboard that is the weak spot in my experience. I have had 3 laptops whose motherboards has failed in my lifetime. Buying a second-hand laptop is not an option for me because they simply aren't as good performance-wise and there is the added risk of hardware failures for outdated components.