Okay, that would be great if the client wanted to wait a few months, I'm not sure in this case if she has that luxury. But it's still stupid to suggest in the IT market to wait a few months for a piece of technology that isn't even tested. 3rd gen i7 > 1st gen Haswell. 1st gen anything will have issues and the i7 can and will handle anything thrown at it.

With all that said it's still stupid to wait, if every enterprise level IT group waited until the new tech came out, they would be waiting FOREVER! Three places I work with right now that all work at an enterprise level are JUST NOW getting windows 2008 rolled out to all their servers. Not all are even updated. This isn't just one major company this is THREE. So should I just stop them and tell them to wait til 2012? No, 2008 is tested and it works and is now ready to be released.

Now I know this isn't enterprise level. But even if I was asked to spec out new computers now for my clients I would stay with the trusted i7 rather then asking them to wait a few months.
When suggesting things to clients where YOUR money is not being used Trusted > New. Any fucking day.