It can be annoying AnatomyOfARyan, but that is the computer biz... newer faster processors come out almost as fast as the rumors about them! If you let it bother you, it will make you crazy. Just get a computer that meets your needs today. If (and when) something faster and/or better comes out (which it will) your present computer still meets your needs. The presence of something faster/better doesn't invalidate the usefulness of the computer you have ... and, if your needs have changed in the interim, you can always step up.
I find it kind of neat - you ALWAYS have the choice of getting a better computer at any time. There is ALWAYS a better one than the one you have now.
But just remember, as soon as you get that new one, the cycle starts all over again, because something faster and better is bound to come out shortly thereafter!