A dealer taking on a trade of a piece of equipment runs the risk of not making the amount of money they want to make in the time frame they want to make it. The dealers have a harder time judging demand on a lesser-known piece of equipment compared to one of the well-known brands since fewer of them are being bought and sold and thus that affects their ability to determine how much they should pay for it, how much they should expect to sell it for, and how long their money will be tied up in it. Also there is much more of an unknown for the dealer with regards to the cost and ability to fix any potential issues they may discover the unit has. The potential costs of those unknowns may outweigh the opportunity to make money in some dealers' eyes but not in others. There are both ends of the spectrum locally. The local Kubota dealer only deals with used equipment when it's an "oops I bought the wrong machine from you two weeks ago and want to trade it for another one" situation. The local New Holland dealer will take almost anything, including some things that are for parts only.
The current major brands are Deere, all of the stuff CNH sells or their former companies have ever sold, and Kubota. Massey-Ferguson, Yanmar, and LS are sort-of-second-tier brands around here. Massey-Ferguson's big issue is that the brand declined to a fraction of what they once were and dealer support is skimpy. Yanmar is known to have made Deere's compacts for them in the past and is known to still make Deere's compacts' engines but has sold few tractors under its own badging here in the U.S. and the dealer network is not very robust. LS has a better dealer network around here than Massey-Ferguson and Yanmar and at least the CNH dealers know they make CNH's compacts, but the brand itself is new and that relegates them to second tier. Deutz would be similar, quite a few farmers had a friend of a friend who had an old air-cooled one but they were never all that popular. Mahindra is a "maybe second tier" as they are popular globally and have a little presence here but less so than the other ones mentioned. The no-longer-made major brands like Oliver/White, Allis-Chalmers, and Minneapolis-Moline are basically treated like a used tractor of the same vintage from a current major brand. Everything else is considered a third-tier no-name budget machine. Some dealers do take consigned items, and letting you consign it with them is about all that they'd have to do with those third-tier units.
