LET HIM ENJOY HIS NEW PURCHASE!
Good god, man... If there is a new PB (which there have been no such rumors), then so be it. He doesn't care, and neither should you. What he does with his money is his responsibility, and he doesn't need someone here telling him what he should've done, or that new products will come out when there isn't any evidence for it!
Now on topic: When I bought my 12" PB, in May 2004, I was freakin ecstatic! I had been admiring macs from inside CompUSA forever, and finally saved up enough cash to get one. I absolutely love this computer. It's the best one that I have ever owned. I think I bought my PB at the right time (it's been 8 months, and my PB is still being sold new in the Apple store), but even if an update would have come out the day after I bought mine, I wouldn't care. THis is all I need. I hope that you enjoy your new PB to the fullest!
Don't pay any attention to the patronizing n00bs.