Chayro,
While I don't disagree with most of what you say, you illustrate the fact that used Wilson's are a good buy. New ones are terrible. Because they seldom offer upgrade or trade in options to their old customers.
Speakers may be more difficult, but ARC came out with the Ref 5SE and offered an upgrade to Ref 5 owners. Wilson would have come out with the "Ref 6" and left Ref 5 owners to taking a bloodbath at trade in/replacement time.
I realize that high end equipment is like high end cars, a big depreciation hit comes with the territory. But there are plenty of companies that at least try and cushion the blow to their customers. Wilson, almost never.
Maybe they'll come out with an upgrade for the Sasha 1. Maybe not to a full Sasha 2 level, but as far as they can take the Sasha 1. But I'm not holding my breath.