I would have to agree. The yanmars seem pretty tough as far as the major components go. I don't count things like lift arms and such as with any linkage components there is the posibility of wear/breakage.. especially when using ground engaging implimints.
The one problem I have seen with asian tractors in general.. is limited operator area for us 'Mericans... And that is just a minor issue.
My little 1700 is tough as nails and strong.. when i built my house a few years ago, the contractor left me quite a few yards of dirt to distribute where I wanted it.. and i moved every bit of it with that yannie and a rear scoop... hours at a time just scooping, traveling, and dumping repetively.. took weeks to move that dirt.. tractor never hiccoped once. ( Did have the adjustable lift link give out at the ball joint.. but it was already on its last leg anyway, after I bent it with the box blade a year before and had to use a torch and pipe to bend it true... so I don't count that one.. ).
Soundguy