I used to LOVE looking at the TV's at Costco but we let our membership lapse about 18 months ago and haven't and don't plan on renewing. Nearest Costco is about 20 minutes away so we found ourselves not going very often making it just a hassle to go there over places right down the street.
What I did decide to do is take dar's advice and ensure that I buy from a reputable seller. I was literally about to pull the trigger on an ebay coupon for a 65" TCL to net cost me 709 with free shipping and no tax, but didn't feel comfortable with the seller. I'm a deal hound but when it comes to bigger ticket items up toward a grand I'm more conservative.
Tomorrow, I'll probably go to Walmart, Best Buy, etc. to take a look and then decide. My wife is so lost actually having to talk to me that a TV has to be installed, pronto. I want to watch, THE STAIRCASE, on Netflix on the big screen.