Debating the current pre-nov deals Costco Deal for the 48 CX. The nearest Costco is over an hour away so it would be + $60 express ship. Also +$60 membership signup fee to avoid a +5% ~$78 surcharge. So grand total would be $1610 incl the shipping, membership, and the "free" 3 or 5 year warranty (and $100 hulu gift card). I think the warranty actually goes +2 yrs by visa cc to 5 yrs with a visa checkout.
I had an accepted offer through greentoe of $1450 in July. If I was going to buy another one, I'd try offering them $1400 and see if any retailer bites. I've put in offers on 3 different tvs in the last couple years and it's always been the same, reputable retailer that I've dealt with.