This is what I hate about consumer electronics - so disposable (and sometimes built to have a half-life) and quickly becoming a huge environmental hazard. If we could start using alternatives to petro-chemicals and somehow find a way to successfully and securely recycle the delicate bits for new computers/devices.
So far I have kept my old computers running (OSX and Ubuntu) - so no extra waste. My sisters son's laptop somehow got a smashed screen so I removed it and they use a crt with the it, I call it the "ghetto-top" now. They returned their other computers to Best Buy
Here is one option - there are tons of children or poor families who would kill for an old machine that can get on the net and help with other simple computing/educational needs.
Computer recycling, refurbishing, sales to low income households, individuals and families