How much are you seeing for TB016 now?
I think ours was 10k with 1600 hours.
Its a machine that you can get parts for and has resale value.
I see the yanmar as one of those 'not new enough to be relevant' but not old enough to have classic value. I'd most likely pass, it would literally have to be 3500 bucks or something. would be hard to ever get rid of.