If they are close to the HE60, then they are worth the price. I seriously doubt they will be up with the HE90. That phone was on it's own plateau...
More than one person giving early impressions basically gave the idea that these 800s could hang on their own respectably against electrostats like that Hall of Famer you named.
Placebo and honeymoon afterglow "wow" factor notwithstanding, if these 800s really do come in the ballpark of the electrostats then I would think that would make their asking price more "reasonable."
That's a big "if."