The reality of planned obsolescence is so deeply depressing to me. The environmental costs are obvious - the psychic costs may be less so but nonetheless harmful as we collectively partake in such depraved commercial strategy.
* via Kottke.
HP print cartridges are meant to "expire" after a year. The printer will not use them and will return a cartridge error. So, people who don't print a lot are out of luck. So, planned obsolescence is there. Just try to repair a DVD player these days (or any other comsumer electronic).