Every time I get a new box or reinstall the OS I trash ALL the printers, the Japanese dictionary, Garage band, iDVD themes etc. all in all probably around 20GB and never ever had any issues with it.
Printers come with CDs and latest drivers are on their websites, why would you keep drivers for printers which you'll never ever buy?
An ????? software engineer told me the drivers are there to keep folks amused with "it just worked!" trick.
In fact you could also get rid of Alex, who sounds nice, but how often do you really listen to him?