On quality check the cap sealing the bottle, if it doesn't look tampered with and the whisky is still a bright colour then it should be drinkable as sometimes the cap darkens the whisky if the wad inside has been damaged. As to value, I reckon it's more valuable to you as a bottle of whisky as there's very little value to it in an auction. Have a look at the thread below for more info
http://www.whisky.com/forum/showthread.php?t=96466