Should I buy Silver on Ebay? Do's and Don'ts

-The roll of 20 1 oz American eagles shown were found at https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338035672&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2F2016-1-oz-Silver-American-Eagle-Coins-BU-Lot-Roll-Tube-of-20-%2F232158906872%3Fhash%3Ditem360dbfc9f8%3Ag%3ArTUAAOSwA3dYPaj9 - the 3 2017 1 ounce american eagles shown were found at https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338035672&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2F2017-1-Troy-oz-American-Silver-Eagle-Lot-of-3-Coins-SKU44362-%2F132039627749%3Fhash%3Ditem1ebe2cd3e5%3Ag%3A30IAAOSw-0xYWEv8 -the 5 2017 1 ounce american eagles were found at https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338035672&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2F2017-1-Troy-oz-American-Silver-Eagle-Lot-of-5-Coins-SKU44363-%2F132039629572%3Fhash%3Ditem1ebe2cdb04%3Ag%3A-48AAOSwhdRYWE2F -The 20 ounce poured scottsdale mint bar shown was found at https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338035672&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2FSPECIAL-PRICE-20-oz-999-Silver-Bullion-Long-Cast-Bar-by-Scottsdale-Mint-A397-%2F142035790539%3Fhash%3Ditem2111fe2acb%253Ag%253AQcQAAOSw8gVX9YEm The prices shown were at time of video and are subject to change with spot price. official rules for Free silver February EXP. 02/27/17 Drawing on the Last day of February. Everyone who is subscribed Every three videos you comment free silver February is another chance entered into the drawing. I'll cover shipping. And the winner will get a chance to say Hi or plug their channel or Just give a shot out on the Show If they want. -YouTube is not a sponsor of this contest and require users to release YouTube from any and all liability related to this contest. -privacy notice any personal data collected for the delivery to winner of contest will not be stored, saved, or shared -all entries must abide by these policies http://www.youtube.com/t/community_guidelines Disclaimer ALL CONTENT ON 'SILVER REPORT' YOUTUBE CHANNEL IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. 'SILVER REPORT' ASSUMES ALL INFORMATION TO BE TRUTHFUL AND RELIABLE; HOWEVER, THE CONTENT ON THIS CHANNEL IS PROVIDED WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. NO MATERIAL HERE CONSTITUTES "INVESTMENT ADVICE" IT IS GOOD TO EXAMINE THE FACTS FOR YOURSELF AND ACTIONS YOU UNDERTAKE AS A CONSEQUENCE OF ANY ANALYSIS, OPINION OR ADVERTISEMENT ON THIS CHANNEL ARE YOUR SOLE RESPONSIBILITY.