Price Of Silver, Up Or Down?

For what I know, there are two ways to make a profit on coins.

The first may be obvious: just advertise that you buy coins and wait for some clueless heirs of a coin collection to show up on your doormat. Then tell them you pay 2 cent for every cent in the penny album, which includes the s-vdb and other key dates. Or maybe be nice and make it 3 cents or so. Then turn to the bay and... profit!

The second option is to buy the right coin at the wrong location. A lot of 'foreign' coins which get sold at auctions would raise much more when being sold 'at home'. I've traveled extensively and one of the things I found out is that the further a coin is from home, the less it raises. One sample is a 1877 50 Øre coin. I bought it for $4 in Prague and sold it again for $20 at home. Do this with high end coins, and... profit!