And it used to be such a struggle to upgrade or change systems. Say you purchased a new license back with CS2. Skipped CS3 but purchased the upgrade to CS4 at a reduced price. Then you decided to upgrade to CS5, and then again to CS6. Then, you upgrade your system, or need to reinstall the suite. That means you need to go back and install CS2, then upgrade to CS4, then upgrade to.... and so on and so on. This current format keeps everything up-to-date, and the business plans allow for a single administrator to control licenses and access.