To be fair..i think you are making a few asumptions.. and taking a few comments out of context.
1, I believe all the big 3 units are pretty much equal in build quality. That is.. I expect a green one, blue one, red one, and orange one all to be top notch in engineering quality.
2, The hours issue / i/4 life / bull. i think you are still expecting too much. that is.. you have a machine with 2200 hours, and you -don't- think it should have any wear in those hours? That's asking alot... 4ys and 2200 hrs. that was a 'daily driver' machine. Common to see deisels run 8000 - 10000 hours or more before being ready for a rebuild. I think the 1/4 life comment was at least, close to the mark.
3, leased / rental unit = Drive it like you don't own it. On 2 otherwise equal machines.. i'd much prefer to own a '1 owner' unit than a leased unit. Leased units see all ranges of user use and abuse, and all levels of user experience.
I didn't see anywhere that the previous poster said the old loader technology was better.. he said the geometry was different and may have had longer cyls. You are misquoting him a bit.
Now.. you bought a used tractor. it still sounds like a decent unit to me.. just has a few bumps and bruises. Sounds like the dealer is trying to make it right by working on it 2x times now.
Recon does not mean 'perfect'. If ya wanted a perfect one.. ya shoulda bought new.
Soundguy