I have a 9900 and 9800. The 9900 is a little wider gamut. However, it's just a little wider than my 9800 for my work.
I bought the 9900 to print canvas--faster than the 9800 and the rotary cutter that will handle that heavy stock. For this project, the larger carts, 350ml and 700ml, vs. 220ml are nice.
We recently also got a 3880 for sheets. It's got the Vivid Magenta pigments. it's also an incrementally better printer than the 9900 and faster/better/cheaper to run than the 2200 it replaced plus better b&w and nicer canned profiles.
If price is an issue, don't shy away from even the x800 printers if you find one. They will make fantastic quality prints. However, if you need speed, the rotary cutter, large carts, then get either the 9890/9900. If you are doing flexography or other prepress, the 9900 with spectro in that environment is a nice combo and from what I understand, does a pretty good job as a proofing machine for not only hexachrome but a pretty good job hitting most of the spot colors of the PMS deck.
Otherwise, any of the later model Epson printers will produce great prints.