Hot Packs and Pack Searchers

Lets face it, hot packs and pack searchers go together like two peas in a pod.  People will weigh packs to determine whether or not there is a memorabilia and/or autographed card inside.  Then they will sell or open the packs.  Searching eBay you will find many people selling hot packs.  Some people are satisfied with the results but many are not.  How do you know what they are selling is a hot pack or not.  They could just be out to make money.  You never want to purchase a product that has been searched.  If there was something really good inside don’t you think they would open it before they sold it to you?