I've seen many $$$ tv's on Amazon, ect. I've never heard of most of the stores that sell the $3000.00 tv's. How do I know they are a qualified dealer? If there's a problem & I have to return it- who pays the huge shipping charge? How many of you bought a tv online? Is the price really that better online? Sorry for all teh questions, but buying a big ticket item online will be new to me... thank you for ANY input!!!