Well, ultimately that's what it comes down to. One way to find out is to contact the new owner and ask.I asked what folks what think the set might be worth because there has been a lot of interest in this set....especially concerning the ethics of how the set may change hands. However, no one has been willing to give a value. Desirable, yes. But that doesn't mean a thing for value.
To say the value is what someone is willing to pay is an easy answer anyone can give.
And just because the deal didn't get done the way you and a couple of other forum members hoped it would get done doesn't make it unethical.