MG Great White the biggest, longest one. bought it over 10 years ago. I think I paid just under a grand for it. It had the "analog head" it went out 3 or 4 years after I got it. had to upgrade the head. I have spent probably 2- 2.5k on keeping it running. it is always a 400 to 600 fix or replace at $1200 kind of thing.
That extra long ss shaft always has a bend in it also. I have always had MG trolling motors but believe my next one will have a composite shaft........probably the gps locating feature also.