Great post. I think this depends on the persons age along with the tractors. To me everything from the 70's seems pretty new. The product design also seems to play into this. My '49 Farmall H was definately Vintage to me, and my '62 Ford 400 was borderline. It was from a vintage design , but had updates to keep it competitive with the times, like power steering, live pto (2 stage clutch), 5 spd, and the like. My 1974 JD 301A seems modern to me with one finger power steering(even with a full load in the bucket), power reverser, awesome brakes, diff lock, deluxe suspension seat with feature to flip up to stand, all the lights, foot throttle, and load/ depth/ load and depth 3-point hitch settings, and then I remember it is 30 plus years old. Maybe another 20 years and I will consider it vintage. As someone else mentioned my father's idea of vintage is much different than mine, with 25 years more of tractoring.