People replace things: smartphones, tablets, phablets, laptops, LEDs, LCDs, DVD players, portable music players. Whether from breakdown, slow-down, or just the availability of a newer model, people discard electronics at the slightest inconvenience. It’s not just laziness or a lust for the future, either; the economics of gadgets encourages disposal. In some cases, for example, buying a new printer is cheaper than buying a set of new ink cartridges.
Electronics have always produced waste, but the quantity and speed of discard has increased rapidly in recent years. There was a time when households would keep televisions for more than a decade. But thanks to changes in technology and consumer demand, there is hardly any device now that persists for more than a couple of years in the hands of the original owner.