I don't see how a dealer who's had his store for thirty years can keep track on his inventory. The stores I visit have no rhyme or reason to the way it's set up. The stores look like my teenage son's bedroom. Not only coins, but comic books, baseball cards, and Star Wars action figures stacked to the ceiling. It's neat to wade through all that junk, but when I want something in particular, I get the run around, "It's here somewhere, ask me next time." That get's on my nerves. Sometimes I get deals because of this lack of inventory control. I asked to see his Nazi coins. He pulled out a dusty binder that hadn't been touched in twenty years. He didn't want to look for the current values, so he charged me the price that were on the cardboard holders. I don't cherry pick from those foreign coin and buffalo nickel boxes on the counter. I'm sure they've been picked through thousands of times before. My dealer might not know where everything's at, but he knows everything he's got. Plus my dealer gives clad Ikes and Kennedys, and wheaties, Indian head cents and buffalos as change.
A very tuff task to say the least with everything coming in and out everyday But you just have to do your best! In the end that,s all you can do
When I buy coins at the shop I already know what I get for the bulk stuff on a regular basis. Most of the stuff a shop buys gets sold like this anyways. Those bins and boxes you see are going to be the stuff that gets bulked out. The better coins in my shop normally get price coded with what I paid for them almost instantly. This way I assure myself that I make something on everything... even if it is a buck or 2.
Don't be a fool. If it is a steal of a deal buy it. If a coin dealer is lazy or a poor businessman this can be your gain!
It is hard to keep stuff straight in the shop but there are tools to assist with the job. Jeff I wouldn't call them lazy or a poor business man. It's just not possible to know everything about coins and catch everything on a coin. If you find a coin that is not marked as an error but it is an error and is lower than the error price. Don't worry your not robbing them really. They are going to make a profit regardless.