Why hasn't there been an Auction since worlds apart? It was SO COOL!
So they stopped doing the Survivor Auction because of how many people were saving up their money for all the advantages. Well I have a solution to this:
Everything offered is a food item (maybe a shower or a letter from home thrown in every now and then), but hidden in one or two of the items is an advantage. You have no idea if an advantage will be with the food you bought and it makes the auction exciting again! Problem solved!