If you have a good full blown rip program do you really need the Dongle?
Can you even print straight from Corel Draw or Illustrator, or does it need the built in rip to do this?
Seems to me the latest of the 3rd party RIP`s would be a better choice, unless of course the factory software is good enough for what most shops do.
I know cost is a factor, but when searching for a used DCXX some don't come with a Dongle which suits me just fine, as long as I can purchase a separate 3rd party RIP I would be Ok with that.

Thx,
I actually don't own a DCXX yet, but I sure am thinking about it!