Like a lot of folks here, I've got my finger poised over the "Buy an Epson 9900" button, but I've been waiting to see what Epson would announce at Photokina.
My own $.02 is that I'd like the biggest gamut volume I can get, but all of the new printers are close enough to each other that I'm more swayed by how housebroken a printer is.
The thing that's kept me away from the 9900 so far, is the trouble that a lot of people have with the automatic nozzle check function, along with clogs and mysterious ink gaps. So I'm curious whether the new printers use the same ANC, or whether Epson has tweaked it to less susceptible to false positives (thinking that there's a nozzle clog, when there really isn't). Epson doesn't seem to be talking on this point so far, but I'd take a little bit less gamut if it meant having reliable ANC. Plus I'm curious about whether it's still one ink pump along with really long ink lines (which I think is almost certain).
If there's an ink switch on the print head, we're still into black ink swapping, but at a relatively modest cost of maybe $5 or so. I can live with that (albeit with a bit of grumbling, just as I grumble about the cost of an ink switch on the 3800).
So I'm still curious...