Even though I agree with you that storage units sold online generally sell for more, there is no reliable data, nor will there ever be, to support that. Every auction and storage unit is unique and there is no way compare them.
Even at live auctions, you'll see units that sell for way more than they're worth. Why is that? There are all sorts of factors that influence what a unit sells for.
Another thing to consider is the time and gas you'll save by buying online.
Now, I realize that online auctions aren't for everyone. If, you don't believe that getting your local facility managers to switch to online auctions is in your best interest, then I would never ask you to recommend them. However, if there are already online auctions occurring in your area, and that facility uses one of our competitors, it's in your best interest to educate them on the most cost effective service. They save 10% + cancellation fees and you save 10-15%.
Let me ask you this, if your friend or family member was looking for advice on where to sell their merchandise, would you recommend Craigslist or eBay to them and why? Craigslist right? eBay & Craigslist are equally effective services; however, when you're selling locally, Craigslist is the more cost effective solution. OnlineStorageAuctions.com is the storage auction industry's Craigslist.
Like it or not, self-storage operators are migrating toward online storage auction services, and it's hard to stop a moving train. The landscape of this industry will look completely different a few years from now. Live storage auctions will be the minority. The visionaries in this, and related industries know what's coming and they are embracing, adapting and preparing with without haste.