I don't know about the cheap/wal-mart thing. I did a lot of research before I got my Vizio LED at the end of January. About two weeks before, I grabbed a $1700 Toshiba LED and took at back to the store. The Vizio just seemed like the right buy and after some tweeking, looks absolutely amazing. I was a little embarrassed that I went with Vizio because I always considered them a weak/cheap brand but its actually a quality product. I looked at product reviews fro C-Net, N Gadget, Amazon.com, and even youtube.
Would you believe that Vizio was ranked NUMBER ONE on a C-Net list of best medium sized LED HDTV's? I'll try to find the link.
http://reviews.cnet.com/best-33-42-inch-hdtvs/