Or you luck out like I did, and your current tv gets a dark spot, the required part to fix it is discontinued along with your tv, so best buy matches the price of a current "similiar" TV, and you throw down a little extra dough to upgrade.
Walk into best buy with a 46" LCD 60hz refresh rate, walk out with a 46" LED 3D tv, 3D bluray player, 4 3D glasses. Total worth ~$4000+, actuall cost ~$1000.