While that may be true in your case, it is an atypical situation.
Signrios, I think it would be a smooth transition for you moving to another Roland machine. If you've been using Versa Works, then Versa Works Dual will be no problem converting over to. Make sure that you take some time to get to a dealer and see the printer in action. If they don't have one onsite, have them get print samples off of a SG of your files - make sure to include some lighter colors. This is where I've seen customers be less than satisfied. Also ask about print speeds for the samples that you have printed. You may find that you prefer the VG-540 over the SG.
Good luck.