When I saw iTunes 8 needed about 200MB of free disk space to install, I thought I'd have a go at graphing the software's recent high-protein weight-gain programme. Up until version 6, it seems that Apple's flagship software package was a mere stripling, with downloads checking in at well under 15MB up until the end of 2005. Then it was time for a new look iTunes - I think it was about then that the colour of the icon changed from green to blue.
Since version 6, iTunes has definitely been at the cheezburgers and piling on the pounds. Given the way it now glitches and succumbs to the beachball, it's not clear how much is digital muscle and how much is blubber. Either way, its download size is currently doubling every 1.5 years.
After starting it up, I turned off the grid pretty much straightaway. I'm trying out the Genius function but it's still crunching away after an hour. To be fair, it has 20 000 tracks to work through.
The download size estimates are from Versiontracker, by the way.