When a console is bought, it will typically not receive any technical upgrades during its life-cycle. Most computers, on the other hand, nowadays can be upgraded with new technology to increase their technical ability. Consoles do not have that same luxury.
This is the main argument brought forward by Palmer Luckey, the creator of the Oculus Rift.
Even if the Oculus Rift does not have a set timetable for a Xbox One or PS4 release, both companies are currently working on their own virtual reality headsets for their consoles. Microsoft revealed their virtual reality peripheral last year and Sony is expected to reveal their VR peripheral sometime in 2014.
No official release date for the commercial version of the Oculus Rift but the price is expected to be around $300 for the unit. Development kits were sent out earlier this year and several PC titles will support the Oculus Rift when it is released.