How many times have we read in these forums, when a tractor is posted for sale, "I wish i lived closer".. I think thats the key to this problem.
I've also come across the same problem, trying to find a willing buyer, or even trying to give something away for free. I believe the root cause is: This hobby is just very small. There *are* people who want them! But not very many people. And the odds of finding one of those few people **within driving distance** are very low. There might be five people (just to pick a random hypothetical number) who would love to have them! But all five live too far away. And vintage tractors are almost never worth shipping, so they are always "local pickup only" ..
So, IMO, the buyers exist, they are out there.. but the odds of finding one that also happens to live close by, are low..that's the challenge. Vintage garden tractors is actually a very small niche hobby.
Scot Also most people don't have the "mechanical brains" to work on them, All my tractors i bought were "non running" tractors i picked up for $150, then another $100-$150 for delivery, all my tractors have the original Kohler engines (except 2), I do spend $100-$200 to fix them up, My next project is installing my Sportster motor in a "74 Wheel Horse, All my tractors range from 1971 to 1998, I HATE the new PLASTIC CRAP