For me, plasma TVs. I am convinced the reason nobody makes them anymore isn't because of the weight, or because of energy consumption.

It's because if a plasma TV ever broke, it's because you broke it. Products built to last forever just aren't good business sense.

Got a 48" Panasonic Plasma TV back in 2008. Paid £500 for it brand new, state of the art back in the day as 720p "HD-ready". It's still my main TV now. Never once had a problem with it.

Same story with others I've talked to. Lots of people who switched from Plasma to LED, only to find they've had to replace their LED TVs after 3-5 years. Some not even as long as that.

I have a 4K gaming monitor for my computer, and I'm sure on paper it's a million times better than the old Plasma. But for the life of me, I'm just not seeing it.