Most of the time if the price sounds too good to be true, it is. Watch out for the lowballers. A place like J&R electronics has a very solid reputation, and they will price-match with other authorized dealers. Years ago I bought a TV from a sketchy dealer, and found out that the great "deal" thought I was getting was on a re-furb (sold as new). I am not against buying re-furb units, I just like to know that I am buying one. Well TV broke about two years after purchase, got it fixed ($300) lasted another two years, same problem happened again (this time estimate for the fix was $450). Bye, bye TV. Got a new LCD from J&R. Shipped via trucking company, no damage, even the box was in great shape.
Good luck,
Funk