This reminds me of a little Visual Basic program I hacked together about 20 years ago when I wanted to buy a PlayStation 2 but there was a shortage after it launched.<p>Every 5 minutes, my program would make a request to the product page on Amazon and look for the text "out of stock". If it didn't find it, the program would sound off an alarm bell.<p>I still remember sitting nearby, watching TV one night when the alarm went off. I jumped up and ran over to my computer and bought myself a PS2.<p>As silly as it sounds, what I remember most fondly about the PlayStation 2 was making and using this little program to help buy it.