Since you and your wife both liked the
B26 so much, why take a chance on something else? The
B26 is extremely popular for good reasons, so if you buy one you can always resell it if you decide to go bigger. In the meanwhile, you will have a tractor that is maintaining its value. If I were you, I'd change my search form the hair pulling form it's in now...into a search for a good low hour used
B26. You still get the fun of the search, but it is a simpler search, and one where dealers can do most of the work, and it's for a machine that you already know something about Otherwise you are sort of searching in the dark. We don't know anything about those other tractors, but we do know what you used and liked.
Tractors are a pretty nifty investment. Yes, they are expensive....but think of it as an investment. Admittedly so far tractors haven't gone up in value, but there's always a chance

. And the payback is awesome, you already experienced that. It's nice that the popular models do maintain value pretty well. And compared with cars, tractors don't have near the extra expenses. They are perfectly happy kept outdoors with a tarp over the seat, they don't need annual licenses or inspections, and they can be insured for a nominal fee or none at all under your homeowner's insurance policy.
IN summary, I'd go find a good used
B26 and be done. It may not be what you end up with in a few years....but then again it might. And you already know that you both like that machine. That's a lot of advantages.
rScotty