PS3 Ridge Racer: 9 minutes too long?

The Nintendo Nsider Forums are lighting up with glee (and spilling onto Digg) at how horribly terrific it would be if Ridge Racer 7 required a 5 GB install on PlayStation 3's hard disk drive. Some generous (in favor of Sony) math calculates that the install would take 9 minutes and 46 seconds. The assumption is most PS3 games will require HDD dumps, forcing users to constantly install, erase, and reinstall -- these data chunks would fill up the drives fast; certainly the 20 GB model.