The importance of correct spelling

http://gizmag.com/go/7929/ - Misspelt bottle of beer sells on eBay for $304, relisted with correct spelling, sells for $503,300. (For those thinking "for a bottle of beer!?", see the article. It's a rare 1852 beer, specially brewed for an expedition to the Artic.)
Apart from the moral given, another one is that it can be worth checking for misspellings and items in the wrong category when bargain hunting.