The market won't dry up as long as people are willing to trade off lower purchase price for drastically reduced tractor life. The old "it won't ever happen to me" syndrome. Or they old "if they sold it, it must be good" syndrome. Those are often followed by an sickening, expensive sound and the words, "what the ___!" Check out how many tractor manufacturer will warranty a tractor with a 3pt hoe. Right now, I don't know of any that DO.
Now, I don't know anything about your machine and how you operate it. It could be fine for years and years. Most are. But the use of an unsupported hoe induces bending stresses in the castings that will lead to plastic deformation and cracks. The cracks will grow. These are cracks on a frame mounted industrial hoe's transmission bell housing and differential housing. In addition to the measured cracks, there were over a dozen others. It was only a matter of time until that machine was going to be in 2 large leaky parts.
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That's funny, when I bought my tractor and backhoe a couple of years ago, the only backhoe design Kubota would warranty was the one Kubota designed and sold with their tractor, with their name on it, and it was 3 point mounted.