I've found these things quite problematic when it comes to getting attention with just 1 or a few... unless you have high traffic. I mean HIGH traffic.
The few places I see these have no less then 9 (3x vet picks) and UP-UP-UP. Even then, with things in high demand and selling often on a vendor just next to the safe, people always tend to go to the vendor... and never the auction safe, when the buy price is the exact same. Quite disappointing, to be honest.
I was researching if my town should have an auction house. Between that fact and the no-search? Not worth time and money. Sorry.