HP 640 Inkjet Plain-Paper Fax Machine for $39.99 Shipped

HP 640 Inkjet Plain-Paper Fax Machine for $39.99 shipped after this $20 rebate.  Note that the rebate comes in the form of a prepaid Visa card.  This fax machine features fax speed of up to 6 seconds per page and copy speed of up to 4 ppm and stores up to 50 incoming pages.  As a comparison, Amazon has it on sale for $59.