I was vaguely considering the Pro-1000 until I read the specs, which indicated the maximum print length was 25.5". No thanks. I often printed to 34" on my old 3880. I recently replaced it with a new P800 that I located after some sleuthing. It'll print to ten feet with the roll paper holder. Unless you want the 24" inch option—yah, it occupies a lot of real estate—I'd go with a new or used P800. The small cartridges on the P900 didn't appeal to me.
Merrill