I'm in a predicament here as well...
A few weeks ago I ordered the UN55D8000 for $1699 from TigerDirect (free shipping & no tax), but it's been a huge ordeal as they keep placing it on backorder and haven't been helpful, so I canceled it yesterday and ordered the 55LM7600 for $1614 from Sears (free shipping + tax). However, TigerDirect just got back to me and said they received the Sammy today and it's being delivered tomorrow, so if I want a refund I should just refuse the delivery. That said, it looks like I have some time to decide which one I want, as the LG is set to be delivered on the 4/30. At this point I'm at a bit of a crossroad as I can't decide which to go for. The LG is a new model whereas the Sammy is one year old and has had some flashlight/clouding issues here and there. Any input?