I remember in 2008, when Wizards of the Coast re-launched the official Dungeons & Dragons website to coincide with the announcement of the fourth edition rules. The site was something in the region of 4 MB, plus a 20 MB embedded video file. A huge number of people were refreshing the site to see what the announcement was, and it was completely slammed. Nobody could watch the trailer until they uploaded it to YouTube later.

4 MB was an absurd size for a website in 2008. It's still an absurd size for a website.