Larry:
Appreciate the perspective, although I am leaning towards comments made by Verde and Axxlrod. For me, the question is how much lower? If we're talking a few thousand, then in the scheme of things it isn't that significant, other than the point that you can save a few thousand. If we're talking closer to $10k savings over what is advertised today (used market), then it may pay to wait.
You hit the nail on the head when you say, "be patient"; that is not one of my strong attributes. I, like most, look for a PCar that hits the spot - options, color, miles, and price (ok, so maybe price should be first in the list). As a Newbie when I 'find the one' I look for reassurance from the Masters that say "thumbs up" or "thumbs down"; it causes discomfort (the patience thang) when it's "thumbs down".
If I overpay, I suspect I won't be the first or last, and overpay by a little 2-3k is something I guess I have to live with at the end of the day. I always think you'll find someone who paid less for the same vehicle. It comes down with how important the gotta have it factor is vs waiting just a bit longer.