I remember finding the demo for the classic vehicular carnage-game Carmageddon on a site called Rocketdownload. What blew my mind at the time was that I was on a 28k modem, and the game was a whooping
fifteen megabyte download. I always wondered "WHO can dowload something like that?!". Downloading it while on school, using their superfast ISDN connection would be possible, but I only had 10 megabytes of space on my account
total (which could be exceeded) and I would have no way of bringing it home from there
Thankfully, a friend had a demo cd.