Hmm, so u must be old man, cause it will be 3-5 years max imo... :P Don't u remember how it was with cd? Some time ago no one imagine that cd can disappear... and now? Everything is published on DVD, cause the price of make DVD is cheaper than CD!!! Same will be with blu ray. Technology progress is unstoppable, and if someone doesn't believe in it, than it means he is blind.
EDIT: and about these 8 cores: try to emulate some games, even from ps2, on PC... It will be like slide-show. And games from ps3 are much more advanced. Now on PC there are only few really good games, but they are nothing in compare with games on ps.
Btw. I don't know what's point of your complains on ps3... U write that sony made ps3 to steal ppl money. I don't know any person who buy it and agree with u. All are satisfied, less or more, but still content.