First of all, I love this site! It's helped me in many purchase decisions over the years.
I just wanted to post that I was able to buy the P60ST60 at Best Buy yesterday evening at the Sears price. Like rvanderwerf stated, it was not on display, not online, and only in their internal system. They had 2 in stock, and were totally great about price matching Sears online. I had no issues whatsoever. I'm not even sure they checked the Sears stock notification -- I just showed them the price on my phone and they were totally cool about it, so I really think it depends on which Best Buy you go to. I'm in Washington State, by the way.
I can't wait to get this thing delivered tomorrow!