<<Oh, there are quite a few "hobby" farms in that size range. They are not "real" farms, however. They do not earn enough money to feed a family if they are that small, so they're not a "family farm" - they are not full time farms and are therefore irrelevant to this discussion. >>
Nonsense. I believe they are in many cases the original "family farm" that never was any bigger than 200 acres. Furthermore, I believe that if a family farm of 200 acres could have fed the current farmer's ancestors a hundred years ago, those same 200 acres could probably feed the farmer's family today. Moreover, unless the settlers of Minnesota got a helluva lot more land than the settlers of Upper Canada, I'll bet that your 1500 acre farm was assembled from about a half-dozen family farms over the decades and represents both the success of the capitalists who assembled it and the failure of the settlers and their descendants whose families lost their family farms to the assemblers.
<<So, only 525 acres are cleared for crops, and it listed for over $3.5 million. Quite a bit over $3.5 million. With no equipment. (The equipment would also be added in to the value of the inheritance and, as I stated earlier, a combine harvester is approaching $0.5 million alone.)>>
It's a big farm and the fact that the owners allowed only about a third of it to be cleared for crops indicates that these were wealthy investors, not a farm family eking out an existence from the soil. The more you write about this place, the less it looks like a small family farm.