Yes, even our old computers could be worth eye-watering amounts of money. Try not to think about how much money you could have potentially flushed down the drain every time you've replaced an old computer or phone; it's best to focus on the present, and make a solemn vow to yourself never to make the same mistakes again!
You'd have had to be a real technology nerd to get your hands on the first ever Apple Computer. The Apple 1 was barely available in shops, wasn't particularly well thought-of on release, and didn't really fire the public imagination. They're only valuable now because of what the company has since gone on to achieve, and now you can expect to receive up to $200,000 if you have one for sale. Even more common early models like the A2S1 can be worth several thousand dollars if they're still in working condition.