phillip suggested one step further than what I would have, and that is to check the glass. I've never heard of squaretrade, interesting.
I have a Mack combo warranty on PJ and bulbs, and I just received my second free bulb. Pretty cool, got it on an AVS powerbuy a few years ago. So far, so great!
You can see what Robert can do for you, he is a member here:
http://www.valueelectronics.com/
http://forums.audioholics.com/forums/member.php?u=10091
There is also Cleveland Plasma, and the other well known major retailers, whether that may be JR, Vanns, Sears, BB, Costco, etc.