2600 have been sunsetted. Activations are no longer able to be transferred. If you are happy, be hard for me to change.

We are currently all 2630's. They do dang near 90 % of the new monitors and you can now buy them for $4k ish with autotrac and section control. 

If it was me, run the 2600 till they die then buy a 2630.

I do like the 6000 globe over a 3000 though but idk if worth buying if the 3000 are still working.

There are other options for RTK if needed on down the road.