I've gone to the L.B. show many times as a buyer. I like it for finding that hard to get or key date coin. Sometimes your local coin shop doesn't have a good selection so the big shows are the place to go to shop and compare. Monthly club shows are good too but there again, sometimes the inventory is limited. If you can't find it at the L.B. show, it probably isn't available anywhere! That place is huge so bring comfortable walking shoes. I'd recommend you limit your search for just a few different coins or one series or you'll be overwhelmed and probably run out of time to see every both before the show is over. Write down what you're looking for so you don't forget anything, and jot down what you should be paying for each. Bring a loupe with you so you don't have to keep borrowing one. I'd also bring cash instead of a credit card. You can sometimes get a much better deal that way if you know what I mean.