While not a total noob at auctions/treasure hunting(I've been a yard saler and thrift store junkie since I was 16 and had my own money) I finally started attending storage auctions about 5 months ago, just to get a feel for it.  Yesterday my wife went with me for the first time and we bought our first 2 units.  Both units were 5x10s and while I wouldn't say we hit the jackpot, I believe we fared pretty well.  Unit #1 We got for $50.  It was a bunch of bags of clothes and what looked to be flatbed diesel straps, and in the front corner were 2 compound bows. I'm no outdoorsman but they're all over the place where I live so I figured it'd be worth the gamble to see about the straps and whatever was underneath the clothes bags. My wife and I talked it over and we said we'd go $75 on it, so I felt really good about getting it at $50.  The first bow was a Jennings OneStar XLR, but one of the limbs is busted, the other is a vintage Bear AMO.  The Jennings is a hard find now so people are looking for parts for them regular, I'll probably make my money back on it alone.  The straps were actually a complete lineman's tool kit. . .  lanyards, pole climbing gear, tool bags,  the whole 9 yards.  Inside a bag of clothes I found a pair of Wick briarproof overalls. Wick is out of business, but their stuff still goes pretty high because it's good quality, the only pair I found on ebay went for $51.

Unit #2 we got for $60.  My wife wanted 2 chairs from the unit, it had an old wooden flip top chest in it, and more bagged clothes. Most of the clothes from this unit are name brand stuff (American Eagle, Abercrombie, Old Navy, Aeropostale, etc.)

In total we ended  up with like 23 garbage bags full of clothes but I'll happily have a yardsale/donate, just for the good stuff we got.