Also we don't know if cable would have to remove their wires
and dish install theirs.

Last time when I switched from cable to DirecTV, the installer didn't
remove the existing wiring. He simply ran new wire using a different
route. This was a good thing because local squirrels like to bite the
wire of the cable service that was put in a way that squirrels have
easy access to the cable.

We expect also to move in 6 mos. so we don't know if it's
worth it.

Probably not. You will lose a vacation day just to sit in your house
waiting for the installer to show up.

Jay Chan