Since digital photography has grown by leaps and bounds good large format scanners are slowly becoming obsolete since there is less and less need for them. I have the last generation of Creo Eversmart (Jazz+) scanner and love it. You can find them on Ebay for fairly cheap every now and again. Kodak bought out the company and then folded the line though so if you find one in working order you will need to find an old computer to run it as they are no longer updating the drivers.
It runs a Tri linear 3 x 8000 pixels color CCD with XY stitch technology.
Creo Scitex EverSmart Jazz Desktop Scanner | eBay