Regarding the statement that the new prices are "virutually identical," that was certainly NOT the case in 2016 when I bought my NX5510. I was able to get a cab for the price difference between it and a comparable Kubota (I didn't like the feel/layout of the open station on the Kubota- no idea what the cabbed version was, as the increased price would have been outside my target range). NOTE: I'm NOT bashing Kubota- I've got one (and I won't let go of it for anything; but, it's a different tool than my Kioti).
Regarding looking at resale value... I've STILL got my B7800 after about 11 years. And I've STILL got my NX5510 after 5 years. No plan on selling either. Yeah, one day when I'm too old to run them I'll probably have to sell, but who the F knows what things will be like at that point? (raise your hand if four years ago you were prescient enough to know what things are like today [yeah, right]) I buy stuff to USE; my intent is to use it until it's no longer usable: I put in all my time on research up front and have no interest in going through such rigors multiple times (if you're doing so then that could mean that your research abilities might need a bit of scrutiny).