man, I must be hard on my equipment
I have scraped the heck out of my ducers and had to buy a new one
then I needed a different one for my electric trolling motor and bought a new one
I wanted one for ice fishing so I wouldn't have to keep removing it from the boat and bought a new one
then I hit a stump and lost one...and I am sure there are a few more I have needed to replace over the years..
oh I just bought one for my x67c ice machine, with a suction cup on it, so I could use it on my folding boat for the back lakes I like to fish