Upload & Sell: Off
After a couple of years with my Epson 7600 sitting on the shelf with head issues, during which time I was running to Sams for poster prints (they use 7800), I caught a deal at B&H ($2100) on a Canon iPf710 (36")
It's technically a CAD/CAM printer with only 4 colors (CMYK/MK) but the output on it is spectacular. Connectivity is easy on the network and the speed at which it prints is amazing.
Personally, having other Canon printers with 8 inks (9000Mk2s) vs 4 colors (iP4600), I cannot tell a difference in the output, so the 4 color works great for me. I'm sure there are many who would 'need' the additional colors, so I'm sure the 6400/8400 series would look great also.