Size isn't everything...
I was reading a discussion on a portable entertainment device and the protagonists were tooing-and-froing over the size of the hard disk on the device and it occurred to me that the hard disk capacity of a device does not tell you much about the capacity or capability of the device.
It really depends on what is stored on that device for example: comparing the 20GB hard disk of the original Xbox to a 60GB iPod is meaningless. The Xbox uses the hard disk for storing saved games, and the ipod for music - they have different file sizes and uses. So can you compare two music devices based purely on the size of the hard disk? Maybe, but consider the different formats used to store music - WMA is more efficient that MP3, so you'll get more music on the same hard disk if your device uses WMA. What about hand held gaming consoles? Well they store save games or game content, so again, totally different from a music player.
It seems sensible to differentiate products in the same range based on their hard disk capacity but between ranges and product types is fairly pointless.
It really is what you do with it that counts :)
