Those new parts will likely be expensive on release. Old parts will go down a little in price. New parts will be about 10-15% faster. You have to make up your own mind if you want these benefits and are willing to wait and pay the premium. If it were me and I had the money right now, I'd select the best stuff I can afford in my budget and go ahead. If your philosophy is to wait for the new stuff you will never buy because new stuff is coming along indefinately.