If two or more person want the item badly and you bid in the last moment. Its not an auction anymore in my eyes its a lottery game since it is time that is a factor.
I think since I am on eBay everyday almost and my dear wife works even there i can guaranty you that its not a question of if you get it but rather when you will get it. how many times I have seen auctions going over the top and suddenly 2 days later someone puts up the same item as buy it now/ Best offer for a fraction of the price...
By the way just saw that in case:
http://cgi.ebay.ie/Witcher-2-Assassi...#ht_595wt_1139