StorageWar cherry picks the units they show on TV. You are not seeing the other dozen units other people bid on and win at the auctions. Also if they really showed the units they won, more often then not there would be nothing exciting to show on TV. The show would get boring pretty quick. They are filming probably a dozen units a week for each buyer and only showing the most interesting ones. Like the ones with the one treasure they find.
My interest in storage units started a good 5 years before the TV show storage wars. I was a work one day and we were clearing out a cabinet of old software. Used to be you had to have a one copy of the software on site for every computer your business had it installed on, this was before the idea of site licenses became popular. We filled a dumpster full of Office 97 software, new in the box, and I say to myself I wonder if anyone would buy this on Ebay. Office XP was out then, and I didn't think so. I was floored when I did a quick check, people were paying $40 or $50 a copy. I moved that dumpster into my office, took the contents home over the course of a week and earned $800 from Ebay. After that I sold about 25 grand worth of stuff on ebay, and they didn't send me a 1099 form either, but I did make some kind of silver member status, got a folder and a special number to call for Ebay help.
When I started to run low on stuff to sell, the idea of buying storage units came to me. I attended three auctions so far, learned a lot by watching other people, but I've yet to place a bid on anything. I'm getting interested again, planning on attending another auction soon.