You will find fakes all over the place at all price points. There have been numerous threads on fake American Silver Eagles, which at retail are just about $20ish (and they're real Silver, just totally fake). If you check the places that sell fakes coins you'll start to understand the breadth and depth of the severity. Although recently those chinese based websites have "COPY" stamped on the coins and the selection has diminished by, I'd say, 90%. But you can still find plenty of inexpensive coins that are fake on other websites.