Thanks, guys, for the kind comments.
The tractor, Nick, is a dandy, with a Kohler engine that should last forever. Oddly enough, though, just after the warranty expired BOTH rear axle seals failed, despite promotional literature that said they would last forever, and the manufacturer refused to help. On the other hand, the dealer from whom I bought the tractor was outraged, and replaced both seals for the cost of the parts (Good thing, too, as I didn't feel like removing the entire transaxle to replace the seals).
Charlie, I get the impression that you're an O-gauge locomotive guru. If this is correct, I have a question for you. Please let me know.