Selling a used tractor is easy. Selling multiple light implements in order to buy heavier, wider implements for a new, heavier tractor requires a lot of time.
I think that is an excellent point. (especially the LIGHT implements description)
We live on my wife's family farm. Place started as 500 acres but, there were a lot of woods. I wasn't here then so I don't know the ratio of woods to fields.
They had an International 444 tractor. I don't know the HP.... let's call it 40.
They used a 5' rotary cutter to cut the fields. Yes, a 5' mower. I might add that without measuring, I'm guessing the place is 50/50 fields/woods with a slight advantage on woods.
Years later, TVA came in, took half the property to install a lake (so now we're surrounded on 3 sides by a lake!) and the farm is 250 acres. This is where I entered their lives.
Still had the IH 444 and a 5' cutter..... I've been cutting this place for years and finally said no more. I have too much life to live to spend all summer cutting the place!
Mysteriously, a IH 986/886 (don't know the number) showed up with a 10' HD Rhino mower....and I was back to cutting.
FIL passed away, his son sold the tractor & mower BUT, kept the box blades, spears, angle blades.... everything else that was used on the tractor.
Since I live here, I decided to buy a larger tractor so bought an IH 1066 which is something over 100 HP at the (drawbar? PTO? one of them) It's much larger than the 444.... and now, none of the old implements fit the larger tractor.
I'm not going to replace those implements to hang off the back, I'll stop at the 15' mower.
My agreement with Jeff above is, had they sized the tractor right decades ago, for 500 acres, we might have things that would easily work on today's tractor. Right now, they're becoming scrap metal.