[UPDATE: Apparently not coupled after all. Returned the warranty, making just the TV $1799 +tax]
After shopping for months, finally got spousal approval to pull the trigger on this model. Put in a 3-day bid of $1800 on Greentoe Friday evening, and immediately got the $2099 counter-offer. Spent yesterday scouting around trying to better it, and this afternoon – after failing to get the nearby Best Buy to budge a penny off the new MSRP – I ventured out to the southwest Houston Fry's to see if they could do any good. They've got it for $2296.99, but the code (my salesman, Cordell, said it was the equivalent of my emailed code, hence the YMMV?) gave $497.99 off (to $1799) with the purchase of Fry's 2-year warranty for $289.99, for a grand total of $2088.99 + tax. Despite the tax difference (and the currently limited PP amount), decided that the bird-in-the-hand was worth it, and so am finally replacing the the 52" Sharp AQUOS that I purchased thanks to the Friends & Family code @jameswalter gave me ten years ago.
Thank you to all who have contributed in the several threads the past few months.