2) There is no good shite in those units
I found out the reason behind #2 later on. When the units are abandoned for a while, the management (and their friends) generally gets first dibs on the stuff. So anything left in the units for auction is what other people didn't want in the first place.
That is actually illegal. Until the auction officially ends the contents are still the property of the original owner. At no point does the storage facility take ownership of the contents. The storage place is allowed to place their own lock on the unit, but cannot go through the contents (not that it would surprise me that this is going on in Louisiana).
I went to a few storage auctions before this show came out. There were a few units that had some furniture or other stuff that might have been worth a little bit, but nothing major. We bought one unit with some boxes for $50 and found some glassware and other small things (Probably about $200 worth). Now any storage auction is crowded and gets way overbid because people expect to find treasure after watching this show.