I installed an Argo on my 25cm Dob some years ago. I've had this telescope 14 years and I've been looking at the latest large aperture go-to Dobs that cost about the same as my telescope did back then before the Chinese manufacturers of Skywatcher etc. got into the market. In 1996 I paid $2,200 for an Orion Premium Deep Space Explorer with a JMI Crayford focusser. Now for under $3000 I could buy a 14" Synscan Dob.
The trouble is, I don't want to say goodbye to the Argo Navis. If I ever sold this 'scope the main selling point is that it is fitted out for the AN.
I thought I would buy an auto-tracking Dob and get new encoders for the Argo - but unfortunately the encoders won't fit these 'scopes.
As you are by now probably aware, I'm a BIG fan of the Argo. I will use my old - but very good - scope a while longer while I ponder - preferably out under the clear night sky.
Happy hunting
Andrew