Silver and Gold

.... so I'm watching a video on YouTube about the coming economic collapse and the need to have silver and gold to buy food and pay strippers and such. I decide to do a search on ebay for silver; gold is so expensive that the amount I would be able to buy would probably get lost with pocket lint. Why in the fuck are people buying 5-grain bars of silver for anything over .35 cents? There are tons (maybe not literally) of people buying these bars for +$2.00. Silver prices would have to go through to the roof and into orbit before that buy would pay for itself. Right? What is the best (easiest) way to start gathering these precious metals?