Sales of color-laser printers and multi-function devices that copy, print, scan and fax, have provided growth spurts, even as traditional black-and-white printing and copying shrinks.

FORBES: Did You See "Office Space"? The Printer Scene? Read On

As Daily Tech points out, this seems to suggest that any Vista upgrade DVD can function as a full retail copy of Vista, although it would also seem to be something that Microsoft could put the kibosh on pretty quickly, so you may not want to lose sight of that copy of your old OS just yet.

ENGADGET: Clean install workaround for Vista upgrade discovered