Re-decision
Damn guys. You got me. I had just ordered a 17", 2.3GHz, 8GB RAM, 750GB HDD when I came across this thread. Around 2 minutes later I cancelled my order and replaced it with all the same except a 2.2GHz and another $242 in my pocket. I understand both sides of the argument, but the difference in speed is probably going to be negligible. And considering I'm not going to be spending that $242 on anything but my next mac or an upgrade to my new one, it'll be invested in something that WILL make a bigger difference later. I guess I chose the 2.3GHz originally because I currently have a 3.06GHz core 2 duo, so force of habit or something. But if you think about it, $242 will buy you a lot more in the future than it will now. In two years, that $242 could be the difference between 8GB and 16GB of RAM, or an HDD and SSD. In a year, it could let you upgrade your current machine in ways that would boost your performance more than if you were to go with a 2.3GHz now. Buying a computer is tough but fun. It will always be better to save your money and buy next years model because technology isn't going to regress. But you have to buy sometime, and you have to have your game plan in your head when you do. You have to weigh what money is best spent now, and what is best spent later. It seems to be that this 2.3GHz business is the point of diminishing returns, and at that point, it's best to save that money for next time.
Maybe I'm saying all of this to convince anyone in a dilemma, or maybe it's just to justify my decision. I don't know. But even though I had spendable money leftover after buying the 2.3GHz model, I ended up changing my mind. I suppose it all just depends on your financial situation, your use of the computer, and your evaluation of the speed enhancement.
But no matter which side you're on,
Congratulations on your new Mac!