Back in the day (about two years ago), PC makers always included backup and restore CDs for the operating system and any preloaded software. Now, almost all manufacturers, including Motion, Dell and Lenovo don't include anything. You must purchase CDs as an aftermarket product or create your own when you first get the computer. When you first get a shiny new tablet, creating backup CDs is the last thing you want to do.
Fujitsu, however, includes the CDs (or DVDs for Windows Vista) and even includes the XP disks if you want to downgrade.
I don't know of any other tablet companies that include the disks. Let me know if anyone else deserves kudos.