I saw that the Epson 4880 is selling for about $2000 on many websites. But signwarehouse is selling its "hybrid" package for $3290!!! Here is a link to the page. Can anyone tell me what's the difference between theirs and the regular one from Epson? Are they using 4 ink spaces for the sublijet and 4 spaces for the Chromablast? Is that all there is to it, or is there some kind of an add-on to the printer to enable it to become "hybrid" ? Thanks in advance!