I have definitely thought about that, I love running it, it is calming/soothing. I really lucked out with mine, it is really in great shape for its age. Once I get the 1/4 acre pond done I am going to go through it and try to tighten it up a bit to get it more responsive. It really is amazing how much work it can do and relatively quickly. My biggest issue with the digging part is getting it to bite into the hard pack clay bottom. Once I get down about 10ft under water it kinda just scrapes along the bottom without digging in. If I let the hard clay sit a day of two it soaks up the water and I'm able to peel a few more inches out, just slow going now.
