Hi Jeff
I've JUST taken delivery of my new G11 last week - without Gemini and saved $1,700.
After actively using Zane Hammond's setup at his Magellan Observatory in NSW, I loved using his G11/ArgoNavis combination. Smooth-as, accurate and SILENT. Finding objects and tracking them was a breeze. The menu/object navigation method the ArgoNavis utilises is brilliant. I like push-to.
I'm sure the Gemini is a great system, but I'd rather pay the $1k for the ArgoNavis and Losmandy shaft encoders, and still save about $700 on the Gemini and put it toward an Ethos EP or some other Losmandy accessories.
Just me though