Demand, Sony and so forth
I think the PS3 will be very popular and drive demand for Blu Ray as well as computers with Blu Ray read and write capabilities. The $600? High sure, but as Rob stated the $400 for an Xbox 360 was considered absurd and they are still selling like hot cakes. I was glad to get mine at list.
As to Sony products, granted they did have a series of weak and non competitive gear (and in some areas still do) but now I think the new LCD rear projection sets, the front projectors (Ruby and Qualia anyone?) and the camcorders are damned good. Would I buy a receiver, most likely not. But all in all I think they are coming back strong. My next Sony will either be a Ruby or a hi-def camcorder, most likely not a PS3 as I am happy so far with my 360.
later, when the 1080p games are out and my Ruby is humming, well the wife will never know.....