Cap on the market...
I assume that we are only talking about a reciever component at this time?
If that is the case, then a $2,000 reciever would have to have every conceivable bell and whistle to garner that price. By that I mean support for THX Ultra and/or THX Select audio and support for Dolby Digital EX standards, auto-adjustment to sound level determined by a user-defined seating position in relation to the speaker placement (a'la Bose Lifestyles systems), and somewhere in the neighborhood of a million possible sound sources (an exaggeration to be sure, but you get my point.)
I would welcome a reciever with all of these features rolled into one, and might be willing to shell out the cash to get one, but unless it does everything, Apple compatibility will not be enough to justify such a high price.
RL