That's the price for their wireless headphones. The wired ones are still included. Other wired ones can be used with the adapter, also included. New adapters can be purchased for $9.
Go ahead, get this phone. Then think about what I've said here every time you need to buy something you didn't need to buy to use the previous phone. Multiply that by the install base at the time you had to purchase a specialty headphone or extra dongle or a replacement adapter.
The only innovation Apple is introducing here is the creation of a completely unecessary but new captive market that they then are best positioned to sell into.
