Difference between vg540 & vg2540

New inks, but that's available to the older ones now. Orange and Green inksets - not available on the older models. Edge guides are not removeable, so they won't pop out and damage a printhead. A few programming tweaks that allow it to start printing sooner than the VG. Less ink is wasted for cleanings, etc. - that means that more goes into prints that make you money. Some other minor things that I can't recall off the top of my head.

Good luck and Merry Christmas