Most people buying storage auctions have a good idea how to get rid of all the stuff, connections is key in getting top dollar for items.
I personally sold about 80% of everything I won, at garage sales and the flea markets, with eBay and Craigslist filling in the other 20%
*One thing to think about: There is a tricky cost in handling items. The more you move it, the more it cost you, everything adds to the bottom line. If I won a storage unit full of stuff, it was on the open market in a matter of hours.
Popular places to sell the storage content:
here is my eBay number here.