You're right Duffinator! I'd like also to grab those 50 bucks myself.
In other hand, let's see things from a different angle (marketing strategy):
there's quite a lot of receivers available in the market- which are THX badged - for a much lesser cost.
It's something Denon could easily afford, IMO.
I've been a Denon fan for so many years, but their marketing strategy seems to be in the "opposite way" sometimes. One example:
why do you have to pay an extra $65 for the mike on the 3805, when you get it for free with the 2805?? IMO, the opposite would make sense...
Regarding to the "THX test", no doubt that 3805/3806 surpasses - by far - all specs. Perhaps they're doing things the right way, who knows???
Cheers / Avliner