Silver Coin Deals on E-Bay

Are you getting a deal on silver coins on E-Bay? I see a lot of people who apparently aren't. A lot of bullion items are bid way up for some reason. I for one have bought a lot of bullion items here, and in every case except one, (I didn't read the description correctly before I bid), paid LESS than the melt value, even after shippping was added in. Some of the coins I bought were even real nice BU, AU, and in one case, a seller threw in a better coin than I paid for, because he came up one short on the lot I bought. Here are some guidelines I came up with for getting deals;
1. Pay attention to the ad. Know what you are buying, a lot of sellers will try to trick you.
2. Know what you are buying in terms of what it's really worth. There are so many websites that will tell you what things are worth. I use them constantly. One of the best for silver coins I've found is coinflation.ge,