I think the only folks that can justify this sort of purchase are collectors and enthusiasts. There's simply no practical reason to pick this up as either a smartphone or a camera. And at this price, you could purchase quality products in both categories.
The camera is the only selling factor in this phone. Put the camera technology in a Windows Phone and then it would be worth buying.
Though this phone has a GREAT camera, but still we cant deny the fact that spending $780 on Symbian Belle phone, which doesn't have a much of apps and the user interface is also not TOO good, is useless. Instead one can buy a IDevice or an Android, and the people who want a good camera experience, for them there are other phones too with a great image quality (though not as good as 808) but still. And I would rather prefer to buy an Android and a good SLR, instead.