[juve1996]

I completely disagree with your examples. Cars have massively changed over time - even in short intervals, cars today offer a lot of value you wouldn't get even just 5 years ago in many models. And they're priced accordingly. Computers? Laptops got smaller, graphics improved, performance improved, etc. And still is. Televisions went from CRT to LCD, SD to HD, to OLED. There were continual reasons to upgrade.

The instant pot is like the Bialetti Moka pot - it's a simple device, that doesn't wear down quickly and isn't used enough to wear it down quickly. New devices don't differentiate nearly enough. And the used market is likely flooded with cheap ones that others stopped using.